31406125 has 16 divisors (see below), whose sum is σ = 40113216. Its totient is φ = 24536400.

The previous prime is 31406119. The next prime is 31406147. The reversal of 31406125 is 52160413.

It is not a de Polignac number, because 31406125 - 2³ = 31406117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31406096 and 31406105.

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, 2454 + ... + 8296.

It is an arithmetic number, because the mean of its divisors is an integer number (2507076).

Almost surely, 2^31406125 is an apocalyptic number.

It is an amenable number.

31406125 is a deficient number, since it is larger than the sum of its proper divisors (8707091).

31406125 is an equidigital number, since it uses as much as digits as its factorization.

31406125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901 (or 5891 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 31406125 is about 5604.1167903605. The cubic root of 31406125 is about 315.5039384749.

Adding to 31406125 its reverse (52160413), we get a palindrome (83566538).

The spelling of 31406125 in words is "thirty-one million, four hundred six thousand, one hundred twenty-five".