160691225 has 36 divisors (see below), whose sum is σ = 221098944. Its totient is φ = 115610880.

The previous prime is 160691213. The next prime is 160691239. The reversal of 160691225 is 522196061.

It is a happy number.

160691225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 160691225 - 2⁸ = 160690969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 160691191 and 160691200.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165692 + ... + 166658.

Almost surely, 2^160691225 is an apocalyptic number.

It is an amenable number.

160691225 is a deficient number, since it is larger than the sum of its proper divisors (60407719).

160691225 is a wasteful number, since it uses less digits than its factorization.

160691225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 160691225 is about 12676.4042614615. The cubic root of 160691225 is about 543.6641807573.

The spelling of 160691225 in words is "one hundred sixty million, six hundred ninety-one thousand, two hundred twenty-five".