31040125 has 16 divisors (see below), whose sum is σ = 38937600. Its totient is φ = 24704400.

The previous prime is 31040117. The next prime is 31040137. The reversal of 31040125 is 52104013.

It is not a de Polignac number, because 31040125 - 2³ = 31040117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31040099 and 31040108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29356 + ... + 30394.

It is an arithmetic number, because the mean of its divisors is an integer number (2433600).

Almost surely, 2^31040125 is an apocalyptic number.

It is an amenable number.

31040125 is a deficient number, since it is larger than the sum of its proper divisors (7897475).

31040125 is a wasteful number, since it uses less digits than its factorization.

31040125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 31040125 is about 5571.3665289586. The cubic root of 31040125 is about 314.2735421791.

Adding to 31040125 its reverse (52104013), we get a palindrome (83144138).

The spelling of 31040125 in words is "thirty-one million, forty thousand, one hundred twenty-five".