512751413 has 4 divisors (see below), whose sum is σ = 515715468. Its totient is φ = 509787360.

The previous prime is 512751389. The next prime is 512751419. The reversal of 512751413 is 314157215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314157215 = 5 ⋅62831443.

It can be written as a sum of positive squares in 2 ways, for example, as 426298609 + 86452804 = 20647^2 + 9298^2 .

It is a cyclic number.

It is not a de Polignac number, because 512751413 - 2¹⁰ = 512750389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512751419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481768 + ... + 1482113.

It is an arithmetic number, because the mean of its divisors is an integer number (128928867).

Almost surely, 2^512751413 is an apocalyptic number.

It is an amenable number.

512751413 is a deficient number, since it is larger than the sum of its proper divisors (2964055).

512751413 is a wasteful number, since it uses less digits than its factorization.

512751413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964054.

The product of its digits is 4200, while the sum is 29.

The square root of 512751413 is about 22644.0149487674. The cubic root of 512751413 is about 800.3911696392.

The spelling of 512751413 in words is "five hundred twelve million, seven hundred fifty-one thousand, four hundred thirteen".