31084130 has 96 divisors (see below), whose sum is σ = 72887040. Its totient is φ = 9434880.

The previous prime is 31084127. The next prime is 31084147. The reversal of 31084130 is 3148013.

It is a happy number.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 393431 + ... + 393509.

It is an arithmetic number, because the mean of its divisors is an integer number (759240).

Almost surely, 2^31084130 is an apocalyptic number.

31084130 is an abundant number, since it is smaller than the sum of its proper divisors (41802910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31084130 is a wasteful number, since it uses less digits than its factorization.

31084130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 31084130 is about 5575.3143409139. The cubic root of 31084130 is about 314.4219852781.

The spelling of 31084130 in words is "thirty-one million, eighty-four thousand, one hundred thirty".