1312064188 has 6 divisors (see below), whose sum is σ = 2296112336. Its totient is φ = 656032092.

The previous prime is 1312064183. The next prime is 1312064213. The reversal of 1312064188 is 8814602131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312064183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164008020 + ... + 164008027.

Almost surely, 2^1312064188 is an apocalyptic number.

It is an amenable number.

1312064188 is a deficient number, since it is larger than the sum of its proper divisors (984048148).

1312064188 is a wasteful number, since it uses less digits than its factorization.

1312064188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328016051 (or 328016049 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1312064188 is about 36222.4265890622. The cubic root of 1312064188 is about 1094.7585876204.

The spelling of 1312064188 in words is "one billion, three hundred twelve million, sixty-four thousand, one hundred eighty-eight".