315226451 has 4 divisors (see below), whose sum is σ = 317527512. Its totient is φ = 312925392.

The previous prime is 315226441. The next prime is 315226469. The reversal of 315226451 is 154622513.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315226451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315226441) 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, 1150325 + ... + 1150598.

It is an arithmetic number, because the mean of its divisors is an integer number (79381878).

Almost surely, 2^315226451 is an apocalyptic number.

315226451 is a deficient number, since it is larger than the sum of its proper divisors (2301061).

315226451 is a wasteful number, since it uses less digits than its factorization.

315226451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301060.

The product of its digits is 7200, while the sum is 29.

The square root of 315226451 is about 17754.6177373662. The cubic root of 315226451 is about 680.5722194673.

Adding to 315226451 its reverse (154622513), we get a palindrome (469848964).

It can be divided in two parts, 31522 and 6451, that added together give a palindrome (37973).

The spelling of 315226451 in words is "three hundred fifteen million, two hundred twenty-six thousand, four hundred fifty-one".