31104142 has 12 divisors (see below), whose sum is σ = 48774600. Its totient is φ = 14875388.

The previous prime is 31104127. The next prime is 31104173. The reversal of 31104142 is 24140113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13642 + ... + 15757.

It is an arithmetic number, because the mean of its divisors is an integer number (4064550).

Almost surely, 2^31104142 is an apocalyptic number.

31104142 is a deficient number, since it is larger than the sum of its proper divisors (17670458).

31104142 is a wasteful number, since it uses less digits than its factorization.

31104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29447 (or 29424 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31104142 is about 5577.1087491639. The cubic root of 31104142 is about 314.4894458862.

Adding to 31104142 its reverse (24140113), we get a palindrome (55244255).

The spelling of 31104142 in words is "thirty-one million, one hundred four thousand, one hundred forty-two".