513112247 has 2 divisors, whose sum is σ = 513112248. Its totient is φ = 513112246.

The previous prime is 513112231. The next prime is 513112277. The reversal of 513112247 is 742211315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513112247 - 2⁴ = 513112231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513112277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256556123 + 256556124.

It is an arithmetic number, because the mean of its divisors is an integer number (256556124).

Almost surely, 2^513112247 is an apocalyptic number.

513112247 is a deficient number, since it is larger than the sum of its proper divisors (1).

513112247 is an equidigital number, since it uses as much as digits as its factorization.

513112247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 513112247 is about 22651.9810833402. The cubic root of 513112247 is about 800.5788763392.

The spelling of 513112247 in words is "five hundred thirteen million, one hundred twelve thousand, two hundred forty-seven".