31413245 has 8 divisors (see below), whose sum is σ = 37790520. Its totient is φ = 25067520.

The previous prime is 31413233. The next prime is 31413253. The reversal of 31413245 is 54231413.

It can be written as a sum of positive squares in 4 ways, for example, as 13205956 + 18207289 = 3634^2 + 4267^2 .

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

It is not a de Polignac number, because 31413245 - 2⁶ = 31413181 is a prime.

It is a super-2 number, since 2×31413245² = 1973583922860050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31413245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636 + ... + 9725.

It is an arithmetic number, because the mean of its divisors is an integer number (4723815).

Almost surely, 2^31413245 is an apocalyptic number.

It is an amenable number.

31413245 is a deficient number, since it is larger than the sum of its proper divisors (6377275).

31413245 is a wasteful number, since it uses less digits than its factorization.

31413245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15775.

The product of its digits is 1440, while the sum is 23.

The square root of 31413245 is about 5604.7520016500. The cubic root of 31413245 is about 315.5277790294.

Adding to 31413245 its reverse (54231413), we get a palindrome (85644658).

The spelling of 31413245 in words is "thirty-one million, four hundred thirteen thousand, two hundred forty-five".