31140124 has 12 divisors (see below), whose sum is σ = 57700944. Its totient is φ = 14654144.

The previous prime is 31140077. The next prime is 31140157. The reversal of 31140124 is 42104113.

It is a junction number, because it is equal to n+sod(n) for n = 31140098 and 31140107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228904 + ... + 229039.

It is an arithmetic number, because the mean of its divisors is an integer number (4808412).

Almost surely, 2^31140124 is an apocalyptic number.

31140124 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31140124 is a deficient number, since it is larger than the sum of its proper divisors (26560820).

31140124 is a wasteful number, since it uses less digits than its factorization.

31140124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457964 (or 457962 counting only the distinct ones).

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

The square root of 31140124 is about 5580.3336817793. Note that the first 3 decimals coincide. The cubic root of 31140124 is about 314.6106687395.

Adding to 31140124 its reverse (42104113), we get a palindrome (73244237).

The spelling of 31140124 in words is "thirty-one million, one hundred forty thousand, one hundred twenty-four".