161253675 has 54 divisors (see below), whose sum is σ = 317520476. Its totient is φ = 78170400.

The previous prime is 161253647. The next prime is 161253707. The reversal of 161253675 is 576352161.

161253675 is a `hidden beast` number, since 1 + 612 + 5 + 36 + 7 + 5 = 666.

It is not a de Polignac number, because 161253675 - 2⁵ = 161253643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 24264 + ... + 30186.

Almost surely, 2^161253675 is an apocalyptic number.

161253675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161253675 is a deficient number, since it is larger than the sum of its proper divisors (156266801).

161253675 is a wasteful number, since it uses less digits than its factorization.

161253675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961 (or 5942 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 161253675 is about 12698.5698013595. The cubic root of 161253675 is about 544.2977516388.

The spelling of 161253675 in words is "one hundred sixty-one million, two hundred fifty-three thousand, six hundred seventy-five".