1313927445 has 16 divisors (see below), whose sum is σ = 2116396800. Its totient is φ = 696057024.

The previous prime is 1313927437. The next prime is 1313927453. The reversal of 1313927445 is 5447293131.

It is an interprime number because it is at equal distance from previous prime (1313927437) and next prime (1313927453).

It is not a de Polignac number, because 1313927445 - 2³ = 1313927437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291709 + ... + 296178.

It is an arithmetic number, because the mean of its divisors is an integer number (132274800).

Almost surely, 2^1313927445 is an apocalyptic number.

1313927445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313927445 is a deficient number, since it is larger than the sum of its proper divisors (802469355).

1313927445 is a wasteful number, since it uses less digits than its factorization.

1313927445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588044.

The product of its digits is 90720, while the sum is 39.

The square root of 1313927445 is about 36248.1371245475. The cubic root of 1313927445 is about 1095.2765632405.

The spelling of 1313927445 in words is "one billion, three hundred thirteen million, nine hundred twenty-seven thousand, four hundred forty-five".