160997725 has 48 divisors (see below), whose sum is σ = 239984640. Its totient is φ = 104817600.

The previous prime is 160997713. The next prime is 160997731. The reversal of 160997725 is 527799061.

It is a happy number.

It is not a de Polignac number, because 160997725 - 2⁷ = 160997597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319824 + ... + 320326.

It is an arithmetic number, because the mean of its divisors is an integer number (4999680).

Almost surely, 2^160997725 is an apocalyptic number.

It is an amenable number.

160997725 is a deficient number, since it is larger than the sum of its proper divisors (78986915).

160997725 is a wasteful number, since it uses less digits than its factorization.

160997725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 160997725 is about 12688.4878925741. The cubic root of 160997725 is about 544.0096201532.

The spelling of 160997725 in words is "one hundred sixty million, nine hundred ninety-seven thousand, seven hundred twenty-five".