512157140 has 24 divisors (see below), whose sum is σ = 1173305952. Its totient is φ = 186238880.

The previous prime is 512157131. The next prime is 512157143. The reversal of 512157140 is 41751215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512157143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163774 + ... + 1164213.

It is an arithmetic number, because the mean of its divisors is an integer number (48887748).

Almost surely, 2^512157140 is an apocalyptic number.

It is an amenable number.

512157140 is an abundant number, since it is smaller than the sum of its proper divisors (661148812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512157140 is a wasteful number, since it uses less digits than its factorization.

512157140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328007 (or 2328005 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 512157140 is about 22630.8890678206. The cubic root of 512157140 is about 800.0818353784.

The spelling of 512157140 in words is "five hundred twelve million, one hundred fifty-seven thousand, one hundred forty".