31324142 has 8 divisors (see below), whose sum is σ = 47012616. Its totient is φ = 15653272.

The previous prime is 31324133. The next prime is 31324187. The reversal of 31324142 is 24142313.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1793 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (5876577).

Almost surely, 2^31324142 is an apocalyptic number.

31324142 is a deficient number, since it is larger than the sum of its proper divisors (15688474).

31324142 is a wasteful number, since it uses less digits than its factorization.

31324142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802.

The product of its digits is 576, while the sum is 20.

The square root of 31324142 is about 5596.7974771292. The cubic root of 31324142 is about 315.2291672422.

Adding to 31324142 its reverse (24142313), we get a palindrome (55466455).

The spelling of 31324142 in words is "thirty-one million, three hundred twenty-four thousand, one hundred forty-two".