31418425 has 6 divisors (see below), whose sum is σ = 38958878. Its totient is φ = 25134720.

The previous prime is 31418411. The next prime is 31418441. The reversal of 31418425 is 52481413.

It can be written as a sum of positive squares in 3 ways, for example, as 2128681 + 29289744 = 1459^2 + 5412^2 .

It is not a de Polignac number, because 31418425 - 2¹³ = 31410233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31418393 and 31418402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628344 + ... + 628393.

Almost surely, 2^31418425 is an apocalyptic number.

It is an amenable number.

31418425 is a deficient number, since it is larger than the sum of its proper divisors (7540453).

31418425 is a wasteful number, since it uses less digits than its factorization.

31418425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256747 (or 1256742 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 31418425 is about 5605.2140904697. The cubic root of 31418425 is about 315.5451214388.

Adding to 31418425 its reverse (52481413), we get a palindrome (83899838).

The spelling of 31418425 in words is "thirty-one million, four hundred eighteen thousand, four hundred twenty-five".