31445152252453 has 4 divisors (see below), whose sum is σ = 33100160265760. Its totient is φ = 29790144239148.

The previous prime is 31445152252433. The next prime is 31445152252463. The reversal of 31445152252453 is 35425225154413.

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 31445152252453 - 2⁵ = 31445152252421 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 (31445152252433) 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, 827504006625 + ... + 827504006662.

It is an arithmetic number, because the mean of its divisors is an integer number (8275040066440).

Almost surely, 2^{31445152252453} is an apocalyptic number.

It is an amenable number.

31445152252453 is a deficient number, since it is larger than the sum of its proper divisors (1655008013307).

31445152252453 is a wasteful number, since it uses less digits than its factorization.

31445152252453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655008013306.

The product of its digits is 2880000, while the sum is 46.

The spelling of 31445152252453 in words is "thirty-one trillion, four hundred forty-five billion, one hundred fifty-two million, two hundred fifty-two thousand, four hundred fifty-three".