15314551345 has 4 divisors (see below), whose sum is σ = 18377461620. Its totient is φ = 12251641072.

The previous prime is 15314551313. The next prime is 15314551409. The reversal of 15314551345 is 54315541351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54315541351 = 7649 ⋅7100999.

It can be written as a sum of positive squares in 2 ways, for example, as 10493748721 + 4820802624 = 102439^2 + 69432^2 .

It is a cyclic number.

It is not a de Polignac number, because 15314551345 - 2⁵ = 15314551313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531455130 + ... + 1531455139.

It is an arithmetic number, because the mean of its divisors is an integer number (4594365405).

Almost surely, 2^15314551345 is an apocalyptic number.

It is an amenable number.

15314551345 is a deficient number, since it is larger than the sum of its proper divisors (3062910275).

15314551345 is an equidigital number, since it uses as much as digits as its factorization.

15314551345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062910274.

The product of its digits is 90000, while the sum is 37.

The spelling of 15314551345 in words is "fifteen billion, three hundred fourteen million, five hundred fifty-one thousand, three hundred forty-five".