513650965 has 8 divisors (see below), whose sum is σ = 617703840. Its totient is φ = 410038992.

The previous prime is 513650957. The next prime is 513650981. The reversal of 513650965 is 569056315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513650965 - 2³ = 513650957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107655 + ... + 112324.

It is an arithmetic number, because the mean of its divisors is an integer number (77212980).

Almost surely, 2^513650965 is an apocalyptic number.

It is an amenable number.

513650965 is a deficient number, since it is larger than the sum of its proper divisors (104052875).

513650965 is a wasteful number, since it uses less digits than its factorization.

513650965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220451.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 513650965 is about 22663.8691533463. The cubic root of 513650965 is about 800.8589550194.

The spelling of 513650965 in words is "five hundred thirteen million, six hundred fifty thousand, nine hundred sixty-five".