31055930 has 8 divisors (see below), whose sum is σ = 55900692. Its totient is φ = 12422368.

The previous prime is 31055929. The next prime is 31055971. The reversal of 31055930 is 3955013.

It can be written as a sum of positive squares in 2 ways, for example, as 29170801 + 1885129 = 5401^2 + 1373^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31055930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552787 + ... + 1552806.

Almost surely, 2^31055930 is an apocalyptic number.

31055930 is a deficient number, since it is larger than the sum of its proper divisors (24844762).

31055930 is a wasteful number, since it uses less digits than its factorization.

31055930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105600.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 31055930 is about 5572.7847616789. The cubic root of 31055930 is about 314.3268736925.

The spelling of 31055930 in words is "thirty-one million, fifty-five thousand, nine hundred thirty".