31642124 has 12 divisors (see below), whose sum is σ = 55444200. Its totient is φ = 15800928.

The previous prime is 31642063. The next prime is 31642129. The reversal of 31642124 is 42124613.

It is a super-2 number, since 2×31642124² = 2002448022462752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31642124.

It is not an unprimeable number, because it can be changed into a prime (31642129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169 + ... + 8040.

It is an arithmetic number, because the mean of its divisors is an integer number (4620350).

Almost surely, 2^31642124 is an apocalyptic number.

It is an amenable number.

31642124 is a deficient number, since it is larger than the sum of its proper divisors (23802076).

31642124 is a wasteful number, since it uses less digits than its factorization.

31642124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10072 (or 10070 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 31642124 is about 5625.1332428663. The cubic root of 31642124 is about 316.2922441967.

Adding to 31642124 its reverse (42124613), we get a palindrome (73766737).

The spelling of 31642124 in words is "thirty-one million, six hundred forty-two thousand, one hundred twenty-four".