513735247 has 2 divisors, whose sum is σ = 513735248. Its totient is φ = 513735246.

The previous prime is 513735241. The next prime is 513735251. The reversal of 513735247 is 742537315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513735247 - 2¹⁵ = 513702479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513735241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256867623 + 256867624.

It is an arithmetic number, because the mean of its divisors is an integer number (256867624).

Almost surely, 2^513735247 is an apocalyptic number.

513735247 is a deficient number, since it is larger than the sum of its proper divisors (1).

513735247 is an equidigital number, since it uses as much as digits as its factorization.

513735247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 513735247 is about 22665.7284683286. The cubic root of 513735247 is about 800.9027553869.

The spelling of 513735247 in words is "five hundred thirteen million, seven hundred thirty-five thousand, two hundred forty-seven".