513683161 has 2 divisors, whose sum is σ = 513683162. Its totient is φ = 513683160.

The previous prime is 513683153. The next prime is 513683179. The reversal of 513683161 is 161386315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312582400 + 201100761 = 17680^2 + 14181^2 .

It is a cyclic number.

It is not a de Polignac number, because 513683161 - 2³ = 513683153 is a prime.

It is not a weakly prime, because it can be changed into another prime (513683111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256841580 + 256841581.

It is an arithmetic number, because the mean of its divisors is an integer number (256841581).

Almost surely, 2^513683161 is an apocalyptic number.

It is an amenable number.

513683161 is a deficient number, since it is larger than the sum of its proper divisors (1).

513683161 is an equidigital number, since it uses as much as digits as its factorization.

513683161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 513683161 is about 22664.5794357628. The cubic root of 513683161 is about 800.8756874687.

The spelling of 513683161 in words is "five hundred thirteen million, six hundred eighty-three thousand, one hundred sixty-one".