97118031 has 4 divisors (see below), whose sum is σ = 129490712. Its totient is φ = 64745352.

The previous prime is 97118017. The next prime is 97118069. The reversal of 97118031 is 13081179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13081179 = 3 ⋅4360393.

It is not a de Polignac number, because 97118031 - 2⁶ = 97117967 is a prime.

It is a super-2 number, since 2×97118031² = 18863823890633922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97118031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97118011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16186336 + ... + 16186341.

It is an arithmetic number, because the mean of its divisors is an integer number (32372678).

Almost surely, 2^97118031 is an apocalyptic number.

97118031 is a deficient number, since it is larger than the sum of its proper divisors (32372681).

97118031 is a wasteful number, since it uses less digits than its factorization.

97118031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32372680.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 97118031 is about 9854.8480962418. The cubic root of 97118031 is about 459.6563769606.

The spelling of 97118031 in words is "ninety-seven million, one hundred eighteen thousand, thirty-one".