97161090 has 32 divisors (see below), whose sum is σ = 251125056. Its totient is φ = 23916480.

The previous prime is 97161067. The next prime is 97161109. The reversal of 97161090 is 9016179.

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 15 ways as a sum of consecutive naturals, for example, 124176 + ... + 124955.

It is an arithmetic number, because the mean of its divisors is an integer number (7847658).

Almost surely, 2^97161090 is an apocalyptic number.

97161090 is an abundant number, since it is smaller than the sum of its proper divisors (153963966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97161090 is a wasteful number, since it uses less digits than its factorization.

97161090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249154.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 97161090 is about 9857.0325149104. The cubic root of 97161090 is about 459.7242991901.

The spelling of 97161090 in words is "ninety-seven million, one hundred sixty-one thousand, ninety".