513379091 has 2 divisors, whose sum is σ = 513379092. Its totient is φ = 513379090.

The previous prime is 513379007. The next prime is 513379099. The reversal of 513379091 is 190973315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513379091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513379099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256689545 + 256689546.

It is an arithmetic number, because the mean of its divisors is an integer number (256689546).

Almost surely, 2^513379091 is an apocalyptic number.

513379091 is a deficient number, since it is larger than the sum of its proper divisors (1).

513379091 is an equidigital number, since it uses as much as digits as its factorization.

513379091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 513379091 is about 22657.8703986054. The cubic root of 513379091 is about 800.7176326243.

The spelling of 513379091 in words is "five hundred thirteen million, three hundred seventy-nine thousand, ninety-one".