31241425 has 6 divisors (see below), whose sum is σ = 38739398. Its totient is φ = 24993120.

The previous prime is 31241411. The next prime is 31241443. The reversal of 31241425 is 52414213.

It can be written as a sum of positive squares in 3 ways, for example, as 638401 + 30603024 = 799^2 + 5532^2 .

It is not a de Polignac number, because 31241425 - 2¹⁵ = 31208657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31241396 and 31241405.

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, 624804 + ... + 624853.

Almost surely, 2^31241425 is an apocalyptic number.

It is an amenable number.

31241425 is a deficient number, since it is larger than the sum of its proper divisors (7497973).

31241425 is a wasteful number, since it uses less digits than its factorization.

31241425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249667 (or 1249662 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 31241425 is about 5589.4029198117. The cubic root of 31241425 is about 314.9514496435.

Adding to 31241425 its reverse (52414213), we get a palindrome (83655638).

The spelling of 31241425 in words is "thirty-one million, two hundred forty-one thousand, four hundred twenty-five".