31413325 has 6 divisors (see below), whose sum is σ = 38952554. Its totient is φ = 25130640.

The previous prime is 31413313. The next prime is 31413329. The reversal of 31413325 is 52331413.

It can be written as a sum of positive squares in 3 ways, for example, as 477481 + 30935844 = 691^2 + 5562^2 .

It is not a de Polignac number, because 31413325 - 2⁹ = 31412813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31413296 and 31413305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31413329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628242 + ... + 628291.

Almost surely, 2^31413325 is an apocalyptic number.

It is an amenable number.

31413325 is a deficient number, since it is larger than the sum of its proper divisors (7539229).

31413325 is a wasteful number, since it uses less digits than its factorization.

31413325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256543 (or 1256538 counting only the distinct ones).

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

The square root of 31413325 is about 5604.7591384465. The cubic root of 31413325 is about 315.5280468803.

Adding to 31413325 its reverse (52331413), we get a palindrome (83744738).

The spelling of 31413325 in words is "thirty-one million, four hundred thirteen thousand, three hundred twenty-five".