513317071 has 2 divisors, whose sum is σ = 513317072. Its totient is φ = 513317070.

The previous prime is 513316987. The next prime is 513317107. The reversal of 513317071 is 170713315.

Together with next prime (513317107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513317071 - 2¹³ = 513308879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513317971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256658535 + 256658536.

It is an arithmetic number, because the mean of its divisors is an integer number (256658536).

Almost surely, 2^513317071 is an apocalyptic number.

513317071 is a deficient number, since it is larger than the sum of its proper divisors (1).

513317071 is an equidigital number, since it uses as much as digits as its factorization.

513317071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 513317071 is about 22656.5017379118. The cubic root of 513317071 is about 800.6853871171.

The spelling of 513317071 in words is "five hundred thirteen million, three hundred seventeen thousand, seventy-one".