372997161 has 6 divisors (see below), whose sum is σ = 538773690. Its totient is φ = 248664768.

The previous prime is 372997129. The next prime is 372997181. The reversal of 372997161 is 161799273.

It can be written as a sum of positive squares in only one way, i.e., 356643225 + 16353936 = 18885^2 + 4044^2 .

It is not a de Polignac number, because 372997161 - 2⁵ = 372997129 is a prime.

It is a super-2 number, since 2×372997161² = 278253764228119842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (372997181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20722056 + ... + 20722073.

It is an arithmetic number, because the mean of its divisors is an integer number (89795615).

Almost surely, 2^372997161 is an apocalyptic number.

It is an amenable number.

372997161 is a deficient number, since it is larger than the sum of its proper divisors (165776529).

372997161 is a wasteful number, since it uses less digits than its factorization.

372997161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41444135 (or 41444132 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 372997161 is about 19313.1344167642. The cubic root of 372997161 is about 719.8386733458.

The spelling of 372997161 in words is "three hundred seventy-two million, nine hundred ninety-seven thousand, one hundred sixty-one".