31142876 has 12 divisors (see below), whose sum is σ = 54588072. Its totient is φ = 15546288.

The previous prime is 31142869. The next prime is 31142893. The reversal of 31142876 is 67824113.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350 + ... + 8573.

It is an arithmetic number, because the mean of its divisors is an integer number (4549006).

Almost surely, 2^31142876 is an apocalyptic number.

It is an amenable number.

31142876 is a deficient number, since it is larger than the sum of its proper divisors (23445196).

31142876 is a wasteful number, since it uses less digits than its factorization.

31142876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580 (or 12578 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 31142876 is about 5580.5802565683. The cubic root of 31142876 is about 314.6199363439.

Adding to 31142876 its reverse (67824113), we get a palindrome (98966989).

The spelling of 31142876 in words is "thirty-one million, one hundred forty-two thousand, eight hundred seventy-six".