31593142 has 24 divisors (see below), whose sum is σ = 55465560. Its totient is φ = 13456800.

The previous prime is 31593109. The next prime is 31593173. The reversal of 31593142 is 24139513.

It is a self number, because there is not a number n which added to its sum of digits gives 31593142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16642 + ... + 18442.

It is an arithmetic number, because the mean of its divisors is an integer number (2311065).

Almost surely, 2^31593142 is an apocalyptic number.

31593142 is a deficient number, since it is larger than the sum of its proper divisors (23872418).

31593142 is a wasteful number, since it uses less digits than its factorization.

31593142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1989 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 31593142 is about 5620.7777041972. Note that the first 4 decimals coincide. The cubic root of 31593142 is about 316.1289531380.

The spelling of 31593142 in words is "thirty-one million, five hundred ninety-three thousand, one hundred forty-two".