108575172949 has 4 divisors (see below), whose sum is σ = 112319144460. Its totient is φ = 104831201440.

The previous prime is 108575172947. The next prime is 108575173027. The reversal of 108575172949 is 949271575801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949271575801 = 2251 ⋅421711051.

It can be written as a sum of positive squares in 2 ways, for example, as 18280932849 + 90294240100 = 135207^2 + 300490^2 .

It is a cyclic number.

It is not a de Polignac number, because 108575172949 - 2¹ = 108575172947 is a prime.

It is a super-2 number, since 2×108575172949² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108575172893 and 108575172902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108575172941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871985712 + ... + 1871985769.

It is an arithmetic number, because the mean of its divisors is an integer number (28079786115).

Almost surely, 2^108575172949 is an apocalyptic number.

It is an amenable number.

108575172949 is a deficient number, since it is larger than the sum of its proper divisors (3743971511).

108575172949 is an equidigital number, since it uses as much as digits as its factorization.

108575172949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743971510.

The product of its (nonzero) digits is 6350400, while the sum is 58.

The spelling of 108575172949 in words is "one hundred eight billion, five hundred seventy-five million, one hundred seventy-two thousand, nine hundred forty-nine".