31264253 has 4 divisors (see below), whose sum is σ = 32909760. Its totient is φ = 29618748.

The previous prime is 31264243. The next prime is 31264267. The reversal of 31264253 is 35246213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31264253 - 2⁸ = 31263997 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 (31264243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822725 + ... + 822762.

It is an arithmetic number, because the mean of its divisors is an integer number (8227440).

Almost surely, 2^31264253 is an apocalyptic number.

It is an amenable number.

31264253 is a deficient number, since it is larger than the sum of its proper divisors (1645507).

31264253 is a wasteful number, since it uses less digits than its factorization.

31264253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645506.

The product of its digits is 4320, while the sum is 26.

The square root of 31264253 is about 5591.4446254971. Note that the first 3 decimals coincide. The cubic root of 31264253 is about 315.0281422745.

The spelling of 31264253 in words is "thirty-one million, two hundred sixty-four thousand, two hundred fifty-three".