1312905484 has 24 divisors (see below), whose sum is σ = 2574201168. Its totient is φ = 580645440.

The previous prime is 1312905469. The next prime is 1312905493. The reversal of 1312905484 is 4845092131.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401599 + ... + 404854.

It is an arithmetic number, because the mean of its divisors is an integer number (107258382).

Almost surely, 2^1312905484 is an apocalyptic number.

It is an amenable number.

1312905484 is a deficient number, since it is larger than the sum of its proper divisors (1261295684).

1312905484 is a wasteful number, since it uses less digits than its factorization.

1312905484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806505 (or 806503 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1312905484 is about 36234.0376441820. The cubic root of 1312905484 is about 1094.9925241527.

The spelling of 1312905484 in words is "one billion, three hundred twelve million, nine hundred five thousand, four hundred eighty-four".