513720107 has 2 divisors, whose sum is σ = 513720108. Its totient is φ = 513720106.

The previous prime is 513720089. The next prime is 513720113. The reversal of 513720107 is 701027315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513720107 - 2⁸ = 513719851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513720167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256860053 + 256860054.

It is an arithmetic number, because the mean of its divisors is an integer number (256860054).

Almost surely, 2^513720107 is an apocalyptic number.

513720107 is a deficient number, since it is larger than the sum of its proper divisors (1).

513720107 is an equidigital number, since it uses as much as digits as its factorization.

513720107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 513720107 is about 22665.3944814556. The cubic root of 513720107 is about 800.8948876593.

The spelling of 513720107 in words is "five hundred thirteen million, seven hundred twenty thousand, one hundred seven".