513075091 has 2 divisors, whose sum is σ = 513075092. Its totient is φ = 513075090.

The previous prime is 513075071. The next prime is 513075103. The reversal of 513075091 is 190570315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513075091 - 2⁷ = 513074963 is a prime.

It is not a weakly prime, because it can be changed into another prime (513075071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256537545 + 256537546.

It is an arithmetic number, because the mean of its divisors is an integer number (256537546).

Almost surely, 2^513075091 is an apocalyptic number.

513075091 is a deficient number, since it is larger than the sum of its proper divisors (1).

513075091 is an equidigital number, since it uses as much as digits as its factorization.

513075091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 513075091 is about 22651.1609194761. The cubic root of 513075091 is about 800.5595517652.

The spelling of 513075091 in words is "five hundred thirteen million, seventy-five thousand, ninety-one".