160902681 has 4 divisors (see below), whose sum is σ = 214536912. Its totient is φ = 107268452.

The previous prime is 160902653. The next prime is 160902683. The reversal of 160902681 is 186209061.

160902681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 186209061 = 3 ⋅62069687.

It is a cyclic number.

It is not a de Polignac number, because 160902681 - 2⁵ = 160902649 is a prime.

It is a super-2 number, since 2×160902681² = 51779345505975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (160902683) 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, 26817111 + ... + 26817116.

It is an arithmetic number, because the mean of its divisors is an integer number (53634228).

Almost surely, 2^160902681 is an apocalyptic number.

It is an amenable number.

160902681 is a deficient number, since it is larger than the sum of its proper divisors (53634231).

160902681 is an equidigital number, since it uses as much as digits as its factorization.

160902681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53634230.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 160902681 is about 12684.7420549257. The cubic root of 160902681 is about 543.9025481884.

The spelling of 160902681 in words is "one hundred sixty million, nine hundred two thousand, six hundred eighty-one".