160917631 has 16 divisors (see below), whose sum is σ = 204975360. Its totient is φ = 122981760.

The previous prime is 160917629. The next prime is 160917643. The reversal of 160917631 is 136719061.

It is a cyclic number.

It is not a de Polignac number, because 160917631 - 2¹ = 160917629 is a prime.

It is a super-2 number, since 2×160917631² = 51788967933304322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160917611) 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 15 ways as a sum of consecutive naturals, for example, 33325 + ... + 37846.

It is an arithmetic number, because the mean of its divisors is an integer number (12810960).

Almost surely, 2^160917631 is an apocalyptic number.

160917631 is a deficient number, since it is larger than the sum of its proper divisors (44057729).

160917631 is a wasteful number, since it uses less digits than its factorization.

160917631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71214.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 160917631 is about 12685.3313318967. The cubic root of 160917631 is about 543.9193929280.

The spelling of 160917631 in words is "one hundred sixty million, nine hundred seventeen thousand, six hundred thirty-one".