1315305451 has 4 divisors (see below), whose sum is σ = 1315564600. Its totient is φ = 1315046304.

The previous prime is 1315305443. The next prime is 1315305473. The reversal of 1315305451 is 1545035131.

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 1315305451 - 2³ = 1315305443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315305401) 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, 121806 + ... + 132163.

It is an arithmetic number, because the mean of its divisors is an integer number (328891150).

Almost surely, 2^1315305451 is an apocalyptic number.

1315305451 is a deficient number, since it is larger than the sum of its proper divisors (259149).

1315305451 is an equidigital number, since it uses as much as digits as its factorization.

1315305451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259148.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1315305451 is about 36267.1400995447. The cubic root of 1315305451 is about 1095.6593267267.

The spelling of 1315305451 in words is "one billion, three hundred fifteen million, three hundred five thousand, four hundred fifty-one".