97180158 has 16 divisors (see below), whose sum is σ = 194469120. Its totient is φ = 32375256.

The previous prime is 97180157. The next prime is 97180207. The reversal of 97180158 is 85108179.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97180157) 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, 11373 + ... + 17991.

It is an arithmetic number, because the mean of its divisors is an integer number (12154320).

Almost surely, 2^97180158 is an apocalyptic number.

97180158 is an abundant number, since it is smaller than the sum of its proper divisors (97288962).

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

97180158 is a wasteful number, since it uses less digits than its factorization.

97180158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 97180158 is about 9857.9996956786. Note that the first 3 decimals coincide. The cubic root of 97180158 is about 459.7543710688.

The spelling of 97180158 in words is "ninety-seven million, one hundred eighty thousand, one hundred fifty-eight".