1375541617 has 4 divisors (see below), whose sum is σ = 1376446320. Its totient is φ = 1374636916.

The previous prime is 1375541599. The next prime is 1375541623. The reversal of 1375541617 is 7161455731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375541617 is a prime.

It is a super-2 number, since 2×1375541617² = 3784229480197949378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 self number, because there is not a number n which added to its sum of digits gives 1375541617.

It is not an unprimeable number, because it can be changed into a prime (1375541017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450067 + ... + 453112.

It is an arithmetic number, because the mean of its divisors is an integer number (344111580).

Almost surely, 2^1375541617 is an apocalyptic number.

It is an amenable number.

1375541617 is a deficient number, since it is larger than the sum of its proper divisors (904703).

1375541617 is an equidigital number, since it uses as much as digits as its factorization.

1375541617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904702.

The product of its digits is 88200, while the sum is 40.

The square root of 1375541617 is about 37088.2948785732. The cubic root of 1375541617 is about 1112.1360316242.

The spelling of 1375541617 in words is "one billion, three hundred seventy-five million, five hundred forty-one thousand, six hundred seventeen".