1312540570 has 32 divisors (see below), whose sum is σ = 2581989696. Its totient is φ = 476428800.

The previous prime is 1312540547. The next prime is 1312540571. The reversal of 1312540570 is 750452131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1312540571) 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, 52362 + ... + 73258.

It is an arithmetic number, because the mean of its divisors is an integer number (80687178).

Almost surely, 2^1312540570 is an apocalyptic number.

1312540570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312540570 is a deficient number, since it is larger than the sum of its proper divisors (1269449126).

1312540570 is a wasteful number, since it uses less digits than its factorization.

1312540570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21486.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1312540570 is about 36229.0017803417. The cubic root of 1312540570 is about 1094.8910659409.

The spelling of 1312540570 in words is "one billion, three hundred twelve million, five hundred forty thousand, five hundred seventy".