31948107 has 4 divisors (see below), whose sum is σ = 42597480. Its totient is φ = 21298736.

The previous prime is 31948069. The next prime is 31948121. The reversal of 31948107 is 70184913.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31948107 - 2⁶ = 31948043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31948607) 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, 5324682 + ... + 5324687.

It is an arithmetic number, because the mean of its divisors is an integer number (10649370).

Almost surely, 2^31948107 is an apocalyptic number.

31948107 is a deficient number, since it is larger than the sum of its proper divisors (10649373).

31948107 is a wasteful number, since it uses less digits than its factorization.

31948107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649372.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 31948107 is about 5652.2656519311. The cubic root of 31948107 is about 317.3085029542.

The spelling of 31948107 in words is "thirty-one million, nine hundred forty-eight thousand, one hundred seven".