512136945 has 64 divisors (see below), whose sum is σ = 947278080. Its totient is φ = 262310400.

The previous prime is 512136941. The next prime is 512136949. The reversal of 512136945 is 549631215.

512136945 is a `hidden beast` number, since 512 + 136 + 9 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (512136941) and next prime (512136949).

It is not a de Polignac number, because 512136945 - 2² = 512136941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512136941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 370155 + ... + 371535.

It is an arithmetic number, because the mean of its divisors is an integer number (14801220).

Almost surely, 2^512136945 is an apocalyptic number.

It is an amenable number.

512136945 is a deficient number, since it is larger than the sum of its proper divisors (435141135).

512136945 is a wasteful number, since it uses less digits than its factorization.

512136945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1497 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 512136945 is about 22630.4428812164. The cubic root of 512136945 is about 800.0713191626.

The spelling of 512136945 in words is "five hundred twelve million, one hundred thirty-six thousand, nine hundred forty-five".