97570161 has 12 divisors (see below), whose sum is σ = 151775988. Its totient is φ = 60043104.

The previous prime is 97570159. The next prime is 97570177. The reversal of 97570161 is 16107579.

It can be written as a sum of positive squares in 2 ways, for example, as 8381025 + 89189136 = 2895^2 + 9444^2 .

It is not a de Polignac number, because 97570161 - 2¹ = 97570159 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (97570061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416850 + ... + 417083.

It is an arithmetic number, because the mean of its divisors is an integer number (12647999).

Almost surely, 2^97570161 is an apocalyptic number.

It is an amenable number.

97570161 is a deficient number, since it is larger than the sum of its proper divisors (54205827).

97570161 is a wasteful number, since it uses less digits than its factorization.

97570161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833952 (or 833949 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 97570161 is about 9877.7609304943. The cubic root of 97570161 is about 460.3685782562.

The spelling of 97570161 in words is "ninety-seven million, five hundred seventy thousand, one hundred sixty-one".