1513631151 has 8 divisors (see below), whose sum is σ = 2242416560. Its totient is φ = 1009087416.

The previous prime is 1513631137. The next prime is 1513631183. The reversal of 1513631151 is 1511363151.

It is a happy number.

1513631151 is a `hidden beast` number, since 1 + 5 + 13 + 631 + 15 + 1 = 666.

It is not a de Polignac number, because 1513631151 - 2²⁷ = 1379413423 is a prime.

It is a super-2 number, since 2×1513631151² = 4582158522555169602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 56060413 = 1513631151 / (1 + 5 + 1 + 3 + 6 + 3 + 1 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513631101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28030180 + ... + 28030233.

It is an arithmetic number, because the mean of its divisors is an integer number (280302070).

Almost surely, 2^1513631151 is an apocalyptic number.

1513631151 is a deficient number, since it is larger than the sum of its proper divisors (728785409).

1513631151 is an equidigital number, since it uses as much as digits as its factorization.

1513631151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56060422 (or 56060416 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 1513631151 is about 38905.4128753314. The cubic root of 1513631151 is about 1148.1712967306.

The spelling of 1513631151 in words is "one billion, five hundred thirteen million, six hundred thirty-one thousand, one hundred fifty-one".