160431997 has 8 divisors (see below), whose sum is σ = 175195872. Its totient is φ = 145698000.

The previous prime is 160431983. The next prime is 160432001. The reversal of 160431997 is 799134061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160431997 - 2²³ = 152043389 is a prime.

It is a super-2 number, since 2×160431997² = 51476851322816018, 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 (160431937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4623 + ... + 18499.

It is an arithmetic number, because the mean of its divisors is an integer number (21899484).

Almost surely, 2^160431997 is an apocalyptic number.

It is an amenable number.

160431997 is a deficient number, since it is larger than the sum of its proper divisors (14763875).

160431997 is a wasteful number, since it uses less digits than its factorization.

160431997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 160431997 is about 12666.1753106453. The cubic root of 160431997 is about 543.3716760258.

The spelling of 160431997 in words is "one hundred sixty million, four hundred thirty-one thousand, nine hundred ninety-seven".