513750969 has 12 divisors (see below), whose sum is σ = 743391792. Its totient is φ = 341897400.

The previous prime is 513750961. The next prime is 513750973. The reversal of 513750969 is 969057315.

513750969 is a `hidden beast` number, since 5 + 137 + 509 + 6 + 9 = 666.

It is not a de Polignac number, because 513750969 - 2³ = 513750961 is a prime.

It is a super-2 number, since 2×513750969² = 527880116296877922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513750961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44847 + ... + 55124.

It is an arithmetic number, because the mean of its divisors is an integer number (61949316).

Almost surely, 2^513750969 is an apocalyptic number.

It is an amenable number.

513750969 is a deficient number, since it is larger than the sum of its proper divisors (229640823).

513750969 is a wasteful number, since it uses less digits than its factorization.

513750969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100548 (or 100545 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 513750969 is about 22666.0752888540. The cubic root of 513750969 is about 800.9109253958.

The spelling of 513750969 in words is "five hundred thirteen million, seven hundred fifty thousand, nine hundred sixty-nine".