315244254451 has 4 divisors (see below), whose sum is σ = 360279147952. Its totient is φ = 270209360952.

The previous prime is 315244254439. The next prime is 315244254527. The reversal of 315244254451 is 154452442513.

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

It is a cyclic number.

It is not a de Polignac number, because 315244254451 - 2¹⁵ = 315244221683 is a prime.

It is a super-2 number, since 2×315244254451² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315244254421) 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, 22517446740 + ... + 22517446753.

It is an arithmetic number, because the mean of its divisors is an integer number (90069786988).

Almost surely, 2^315244254451 is an apocalyptic number.

315244254451 is a deficient number, since it is larger than the sum of its proper divisors (45034893501).

315244254451 is an equidigital number, since it uses as much as digits as its factorization.

315244254451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45034893500.

The product of its digits is 384000, while the sum is 40.

Adding to 315244254451 its reverse (154452442513), we get a palindrome (469696696964).

The spelling of 315244254451 in words is "three hundred fifteen billion, two hundred forty-four million, two hundred fifty-four thousand, four hundred fifty-one".