1312452519 has 16 divisors (see below), whose sum is σ = 2086881792. Its totient is φ = 717365088.

The previous prime is 1312452511. The next prime is 1312452521. The reversal of 1312452519 is 9152542131.

It is a happy number.

It is not a de Polignac number, because 1312452519 - 2³ = 1312452511 is a prime.

It is a super-2 number, since 2×1312452519² = 3445063229258890722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312452519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312452511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358164 + ... + 1359129.

It is an arithmetic number, because the mean of its divisors is an integer number (130430112).

Almost surely, 2^1312452519 is an apocalyptic number.

1312452519 is a deficient number, since it is larger than the sum of its proper divisors (774429273).

1312452519 is a wasteful number, since it uses less digits than its factorization.

1312452519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717326.

The product of its digits is 10800, while the sum is 33.

The square root of 1312452519 is about 36227.7865594905. The cubic root of 1312452519 is about 1094.8665820224.

The spelling of 1312452519 in words is "one billion, three hundred twelve million, four hundred fifty-two thousand, five hundred nineteen".