31114146 has 32 divisors (see below), whose sum is σ = 71285760. Its totient is φ = 8868816.

The previous prime is 31114099. The next prime is 31114157. The reversal of 31114146 is 64141113.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 30025 + ... + 31043.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 2^31114146 is an apocalyptic number.

31114146 is an abundant number, since it is smaller than the sum of its proper divisors (40171614).

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

31114146 is a wasteful number, since it uses less digits than its factorization.

31114146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758.

The product of its digits is 288, while the sum is 21.

The square root of 31114146 is about 5578.0055575447. The cubic root of 31114146 is about 314.5231586007.

Adding to 31114146 its reverse (64141113), we get a palindrome (95255259).

The spelling of 31114146 in words is "thirty-one million, one hundred fourteen thousand, one hundred forty-six".