31116066 has 16 divisors (see below), whose sum is σ = 62393664. Its totient is φ = 10345104.

The previous prime is 31116013. The next prime is 31116067. The reversal of 31116066 is 66061113.

It is not an unprimeable number, because it can be changed into a prime (31116067) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4150 + ... + 8913.

It is an arithmetic number, because the mean of its divisors is an integer number (3899604).

Almost surely, 2^31116066 is an apocalyptic number.

31116066 is an abundant number, since it is smaller than the sum of its proper divisors (31277598).

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

31116066 is a wasteful number, since it uses less digits than its factorization.

31116066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13465.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 31116066 is about 5578.1776594153. The cubic root of 31116066 is about 314.5296280273.

Adding to 31116066 its reverse (66061113), we get a palindrome (97177179).

The spelling of 31116066 in words is "thirty-one million, one hundred sixteen thousand, sixty-six".