513039157 has 2 divisors, whose sum is σ = 513039158. Its totient is φ = 513039156.

The previous prime is 513039143. The next prime is 513039223. The reversal of 513039157 is 751930315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272448036 + 240591121 = 16506^2 + 15511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513039157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513039757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256519578 + 256519579.

It is an arithmetic number, because the mean of its divisors is an integer number (256519579).

Almost surely, 2^513039157 is an apocalyptic number.

It is an amenable number.

513039157 is a deficient number, since it is larger than the sum of its proper divisors (1).

513039157 is an equidigital number, since it uses as much as digits as its factorization.

513039157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 513039157 is about 22650.3677012096. The cubic root of 513039157 is about 800.5408618573.

The spelling of 513039157 in words is "five hundred thirteen million, thirty-nine thousand, one hundred fifty-seven".