31422125 has 16 divisors (see below), whose sum is σ = 44818176. Its totient is φ = 21546000.

The previous prime is 31422101. The next prime is 31422151. The reversal of 31422125 is 52122413.

It is not a de Polignac number, because 31422125 - 2⁸ = 31421869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31422097 and 31422106.

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, 17081 + ... + 18830.

It is an arithmetic number, because the mean of its divisors is an integer number (2801136).

Almost surely, 2^31422125 is an apocalyptic number.

31422125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31422125 is a deficient number, since it is larger than the sum of its proper divisors (13396051).

31422125 is an equidigital number, since it uses as much as digits as its factorization.

31422125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35933 (or 35923 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 31422125 is about 5605.5441305907. The cubic root of 31422125 is about 315.5575077070.

Adding to 31422125 its reverse (52122413), we get a palindrome (83544538).

The spelling of 31422125 in words is "thirty-one million, four hundred twenty-two thousand, one hundred twenty-five".