97137951 has 4 divisors (see below), whose sum is σ = 129517272. Its totient is φ = 64758632.

The previous prime is 97137919. The next prime is 97137959. The reversal of 97137951 is 15973179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15973179 = 3 ⋅5324393.

It is a cyclic number.

It is not a de Polignac number, because 97137951 - 2⁵ = 97137919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97137959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16189656 + ... + 16189661.

It is an arithmetic number, because the mean of its divisors is an integer number (32379318).

Almost surely, 2^97137951 is an apocalyptic number.

97137951 is a deficient number, since it is larger than the sum of its proper divisors (32379321).

97137951 is a wasteful number, since it uses less digits than its factorization.

97137951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32379320.

The product of its digits is 59535, while the sum is 42.

The square root of 97137951 is about 9855.8587144906. The cubic root of 97137951 is about 459.6878017090.

The spelling of 97137951 in words is "ninety-seven million, one hundred thirty-seven thousand, nine hundred fifty-one".