161957675 has 12 divisors (see below), whose sum is σ = 219084936. Its totient is φ = 117787200.

The previous prime is 161957669. The next prime is 161957689. The reversal of 161957675 is 576759161.

It is not a de Polignac number, because 161957675 - 2⁶ = 161957611 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294194 + ... + 294743.

It is an arithmetic number, because the mean of its divisors is an integer number (18257078).

Almost surely, 2^161957675 is an apocalyptic number.

161957675 is a deficient number, since it is larger than the sum of its proper divisors (57127261).

161957675 is a wasteful number, since it uses less digits than its factorization.

161957675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588958 (or 588953 counting only the distinct ones).

The product of its digits is 396900, while the sum is 47.

The square root of 161957675 is about 12726.2592697147. The cubic root of 161957675 is about 545.0886986348.

The spelling of 161957675 in words is "one hundred sixty-one million, nine hundred fifty-seven thousand, six hundred seventy-five".