97192155 has 24 divisors (see below), whose sum is σ = 159857712. Its totient is φ = 50424192.

The previous prime is 97192153. The next prime is 97192171. The reversal of 97192155 is 55129179.

It is not a de Polignac number, because 97192155 - 2¹ = 97192153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97192153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18169 + ... + 22901.

It is an arithmetic number, because the mean of its divisors is an integer number (6660738).

Almost surely, 2^97192155 is an apocalyptic number.

97192155 is a deficient number, since it is larger than the sum of its proper divisors (62665557).

97192155 is a wasteful number, since it uses less digits than its factorization.

97192155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815 (or 4778 counting only the distinct ones).

The product of its digits is 28350, while the sum is 39.

The square root of 97192155 is about 9858.6081674849. The cubic root of 97192155 is about 459.7732893554.

The spelling of 97192155 in words is "ninety-seven million, one hundred ninety-two thousand, one hundred fifty-five".