31108097 has 8 divisors (see below), whose sum is σ = 33219840. Its totient is φ = 29065680.

The previous prime is 31108093. The next prime is 31108123. The reversal of 31108097 is 79080113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31108097 - 2² = 31108093 is a prime.

It is a super-2 number, since 2×31108097² = 1935427397922818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31108093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16403 + ... + 18200.

It is an arithmetic number, because the mean of its divisors is an integer number (4152480).

Almost surely, 2^31108097 is an apocalyptic number.

It is an amenable number.

31108097 is a deficient number, since it is larger than the sum of its proper divisors (2111743).

31108097 is a wasteful number, since it uses less digits than its factorization.

31108097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34663.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 31108097 is about 5577.4633122953. The cubic root of 31108097 is about 314.5027747975.

The spelling of 31108097 in words is "thirty-one million, one hundred eight thousand, ninety-seven".