106515072149 has 4 divisors (see below), whose sum is σ = 109113000780. Its totient is φ = 103917143520.

The previous prime is 106515072133. The next prime is 106515072163. The reversal of 106515072149 is 941270515601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3719170225 + 102795901924 = 60985^2 + 320618^2 .

It is a cyclic number.

It is not a de Polignac number, because 106515072149 - 2⁴ = 106515072133 is a prime.

It is a super-2 number, since 2×106515072149² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2597928589 = 106515072149 / (1 + 0 + 6 + 5 + 1 + 5 + 0 + 7 + 2 + 1 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106515072649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298964254 + ... + 1298964335.

It is an arithmetic number, because the mean of its divisors is an integer number (27278250195).

Almost surely, 2^106515072149 is an apocalyptic number.

It is an amenable number.

106515072149 is a deficient number, since it is larger than the sum of its proper divisors (2597928631).

106515072149 is an equidigital number, since it uses as much as digits as its factorization.

106515072149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597928630.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 106515072149 in words is "one hundred six billion, five hundred fifteen million, seventy-two thousand, one hundred forty-nine".