513001493 has 2 divisors, whose sum is σ = 513001494. Its totient is φ = 513001492.

The previous prime is 513001477. The next prime is 513001529. The reversal of 513001493 is 394100315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463411729 + 49589764 = 21527^2 + 7042^2 .

It is a cyclic number.

It is not a de Polignac number, because 513001493 - 2⁴ = 513001477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513001693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256500746 + 256500747.

It is an arithmetic number, because the mean of its divisors is an integer number (256500747).

Almost surely, 2^513001493 is an apocalyptic number.

It is an amenable number.

513001493 is a deficient number, since it is larger than the sum of its proper divisors (1).

513001493 is an equidigital number, since it uses as much as digits as its factorization.

513001493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 513001493 is about 22649.5362645684. The cubic root of 513001493 is about 800.5212712091.

The spelling of 513001493 in words is "five hundred thirteen million, one thousand, four hundred ninety-three".