513161152237 has 2 divisors, whose sum is σ = 513161152238. Its totient is φ = 513161152236.

The previous prime is 513161152201. The next prime is 513161152241. The reversal of 513161152237 is 732251161315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513155889801 + 5262436 = 716349^2 + 2294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513161152237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513161152196 and 513161152205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513161152297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256580576118 + 256580576119.

It is an arithmetic number, because the mean of its divisors is an integer number (256580576119).

Almost surely, 2^513161152237 is an apocalyptic number.

It is an amenable number.

513161152237 is a deficient number, since it is larger than the sum of its proper divisors (1).

513161152237 is an equidigital number, since it uses as much as digits as its factorization.

513161152237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The spelling of 513161152237 in words is "five hundred thirteen billion, one hundred sixty-one million, one hundred fifty-two thousand, two hundred thirty-seven".