31348453 has 4 divisors (see below), whose sum is σ = 31465260. Its totient is φ = 31231648.

The previous prime is 31348441. The next prime is 31348501. The reversal of 31348453 is 35484313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18258529 + 13089924 = 4273^2 + 3618^2 .

It is a cyclic number.

It is not a de Polignac number, because 31348453 - 2²¹ = 29251301 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 (31348433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58000 + ... + 58537.

It is an arithmetic number, because the mean of its divisors is an integer number (7866315).

Almost surely, 2^31348453 is an apocalyptic number.

It is an amenable number.

31348453 is a deficient number, since it is larger than the sum of its proper divisors (116807).

31348453 is a wasteful number, since it uses less digits than its factorization.

31348453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116806.

The product of its digits is 17280, while the sum is 31.

The square root of 31348453 is about 5598.9689229357. The cubic root of 31348453 is about 315.3106970577.

The spelling of 31348453 in words is "thirty-one million, three hundred forty-eight thousand, four hundred fifty-three".