31325413 has 8 divisors (see below), whose sum is σ = 36305280. Its totient is φ = 26471760.

The previous prime is 31325389. The next prime is 31325429. The reversal of 31325413 is 31452313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31325413 - 2¹⁷ = 31194341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31018 + ... + 32011.

It is an arithmetic number, because the mean of its divisors is an integer number (4538160).

Almost surely, 2^31325413 is an apocalyptic number.

It is an amenable number.

31325413 is a deficient number, since it is larger than the sum of its proper divisors (4979867).

31325413 is an equidigital number, since it uses as much as digits as its factorization.

31325413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63107.

The product of its digits is 1080, while the sum is 22.

The square root of 31325413 is about 5596.9110230555. The cubic root of 31325413 is about 315.2334307359.

Adding to 31325413 its reverse (31452313), we get a palindrome (62777726).

The spelling of 31325413 in words is "thirty-one million, three hundred twenty-five thousand, four hundred thirteen".