1313553519 has 6 divisors (see below), whose sum is σ = 1897355096. Its totient is φ = 875702340.

The previous prime is 1313553517. The next prime is 1313553547. The reversal of 1313553519 is 9153553131.

1313553519 is a `hidden beast` number, since 1 + 3 + 135 + 5 + 3 + 519 = 666.

It is not a de Polignac number, because 1313553519 - 2¹ = 1313553517 is a prime.

It is a super-2 number, since 2×1313553519² = 3450845694554566722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313553511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72975187 + ... + 72975204.

Almost surely, 2^1313553519 is an apocalyptic number.

1313553519 is a deficient number, since it is larger than the sum of its proper divisors (583801577).

1313553519 is a wasteful number, since it uses less digits than its factorization.

1313553519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145950397 (or 145950394 counting only the distinct ones).

The product of its digits is 30375, while the sum is 36.

The square root of 1313553519 is about 36242.9788924696. The cubic root of 1313553519 is about 1095.1726530784.

The spelling of 1313553519 in words is "one billion, three hundred thirteen million, five hundred fifty-three thousand, five hundred nineteen".