31368345 has 16 divisors (see below), whose sum is σ = 50709120. Its totient is φ = 16556544.

The previous prime is 31368313. The next prime is 31368367. The reversal of 31368345 is 54386313.

It is not a de Polignac number, because 31368345 - 2⁵ = 31368313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9325 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (3169320).

Almost surely, 2^31368345 is an apocalyptic number.

It is an amenable number.

31368345 is a deficient number, since it is larger than the sum of its proper divisors (19340775).

31368345 is a wasteful number, since it uses less digits than its factorization.

31368345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21664.

The product of its digits is 25920, while the sum is 33.

The square root of 31368345 is about 5600.7450397246. The cubic root of 31368345 is about 315.3773758844.

It can be divided in two parts, 31368 and 345, that added together give a palindrome (31713).

The spelling of 31368345 in words is "thirty-one million, three hundred sixty-eight thousand, three hundred forty-five".