513122807 has 2 divisors, whose sum is σ = 513122808. Its totient is φ = 513122806.

The previous prime is 513122761. The next prime is 513122821. The reversal of 513122807 is 708221315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513122807 - 2¹⁴ = 513106423 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513122807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513122867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256561403 + 256561404.

It is an arithmetic number, because the mean of its divisors is an integer number (256561404).

Almost surely, 2^513122807 is an apocalyptic number.

513122807 is a deficient number, since it is larger than the sum of its proper divisors (1).

513122807 is an equidigital number, since it uses as much as digits as its factorization.

513122807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 513122807 is about 22652.2141743362. The cubic root of 513122807 is about 800.5843683506.

The spelling of 513122807 in words is "five hundred thirteen million, one hundred twenty-two thousand, eight hundred seven".