160920631 has 4 divisors (see below), whose sum is σ = 161192592. Its totient is φ = 160648672.

The previous prime is 160920619. The next prime is 160920637. The reversal of 160920631 is 136029061.

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

It is a cyclic number.

It is not a de Polignac number, because 160920631 - 2⁷ = 160920503 is a prime.

It is a super-2 number, since 2×160920631² = 51790898962876322, which contains 22 as substring.

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 160920631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160920637) 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, 135091 + ... + 136276.

It is an arithmetic number, because the mean of its divisors is an integer number (40298148).

Almost surely, 2^160920631 is an apocalyptic number.

160920631 is a deficient number, since it is larger than the sum of its proper divisors (271961).

160920631 is an equidigital number, since it uses as much as digits as its factorization.

160920631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271960.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 160920631 is about 12685.4495781584. The cubic root of 160920631 is about 543.9227730176.

Adding to 160920631 its reverse (136029061), we get a palindrome (296949692).

The spelling of 160920631 in words is "one hundred sixty million, nine hundred twenty thousand, six hundred thirty-one".