31009064 has 16 divisors (see below), whose sum is σ = 61202400. Its totient is φ = 14688432.

The previous prime is 31009031. The next prime is 31009067. The reversal of 31009064 is 46090013.

It is not an unprimeable number, because it can be changed into a prime (31009067) 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 3 ways as a sum of consecutive naturals, for example, 101852 + ... + 102155.

It is an arithmetic number, because the mean of its divisors is an integer number (3825150).

Almost surely, 2^31009064 is an apocalyptic number.

It is an amenable number.

31009064 is a deficient number, since it is larger than the sum of its proper divisors (30193336).

31009064 is a wasteful number, since it uses less digits than its factorization.

31009064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204032 (or 204028 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 31009064 is about 5568.5782745688. The cubic root of 31009064 is about 314.1686788946.

Adding to 31009064 its reverse (46090013), we get a palindrome (77099077).

The spelling of 31009064 in words is "thirty-one million, nine thousand, sixty-four".