1312860361 has 16 divisors (see below), whose sum is σ = 1366305408. Its totient is φ = 1260806400.

The previous prime is 1312860349. The next prime is 1312860379. The reversal of 1312860361 is 1630682131.

It is a cyclic number.

It is not a de Polignac number, because 1312860361 - 2¹³ = 1312852169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312860301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462001 + ... + 464833.

It is an arithmetic number, because the mean of its divisors is an integer number (85394088).

Almost surely, 2^1312860361 is an apocalyptic number.

It is an amenable number.

1312860361 is a deficient number, since it is larger than the sum of its proper divisors (53445047).

1312860361 is a wasteful number, since it uses less digits than its factorization.

1312860361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1312860361 is about 36233.4149784422. The cubic root of 1312860361 is about 1094.9799794787.

The spelling of 1312860361 in words is "one billion, three hundred twelve million, eight hundred sixty thousand, three hundred sixty-one".