31024142 has 16 divisors (see below), whose sum is σ = 48461760. Its totient is φ = 14877408.

The previous prime is 31024141. The next prime is 31024153. The reversal of 31024142 is 24142013.

It is a self number, because there is not a number n which added to its sum of digits gives 31024142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31024141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7403 + ... + 10809.

It is an arithmetic number, because the mean of its divisors is an integer number (3028860).

Almost surely, 2^31024142 is an apocalyptic number.

31024142 is a deficient number, since it is larger than the sum of its proper divisors (17437618).

31024142 is a wasteful number, since it uses less digits than its factorization.

31024142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 31024142 is about 5569.9319564964. The cubic root of 31024142 is about 314.2195916187.

Adding to 31024142 its reverse (24142013), we get a palindrome (55166155).

The spelling of 31024142 in words is "thirty-one million, twenty-four thousand, one hundred forty-two".