513288136 has 8 divisors (see below), whose sum is σ = 962415270. Its totient is φ = 256644064.

The previous prime is 513288133. The next prime is 513288169. The reversal of 513288136 is 631882315.

It can be written as a sum of positive squares in only one way, i.e., 330876100 + 182412036 = 18190^2 + 13506^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 513288095 and 513288104.

It is not an unprimeable number, because it can be changed into a prime (513288131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32080501 + ... + 32080516.

Almost surely, 2^513288136 is an apocalyptic number.

It is an amenable number.

513288136 is a deficient number, since it is larger than the sum of its proper divisors (449127134).

513288136 is a wasteful number, since it uses less digits than its factorization.

513288136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64161023 (or 64161019 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 513288136 is about 22655.8631704908. The cubic root of 513288136 is about 800.6703423113.

The spelling of 513288136 in words is "five hundred thirteen million, two hundred eighty-eight thousand, one hundred thirty-six".