1312847477 has 8 divisors (see below), whose sum is σ = 1327848960. Its totient is φ = 1297931040.

The previous prime is 1312847467. The next prime is 1312847483. The reversal of 1312847477 is 7747482131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312847477 - 2⁴ = 1312847461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312847467) 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, 10049 + ... + 52217.

It is an arithmetic number, because the mean of its divisors is an integer number (165981120).

Almost surely, 2^1312847477 is an apocalyptic number.

It is an amenable number.

1312847477 is a deficient number, since it is larger than the sum of its proper divisors (15001483).

1312847477 is a wasteful number, since it uses less digits than its factorization.

1312847477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42523.

The product of its digits is 263424, while the sum is 44.

The square root of 1312847477 is about 36233.2371863183. The cubic root of 1312847477 is about 1094.9763975369.

The spelling of 1312847477 in words is "one billion, three hundred twelve million, eight hundred forty-seven thousand, four hundred seventy-seven".