1312570 has 32 divisors (see below), whose sum is σ = 2861568. Its totient is φ = 423168.

The previous prime is 1312567. The next prime is 1312579. The reversal of 1312570 is 752131.

1312570 = T₈₅ + T₈₆ + ... + T₂₀₃.

It is not an unprimeable number, because it can be changed into a prime (1312579) 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, 639 + ... + 1741.

It is an arithmetic number, because the mean of its divisors is an integer number (89424).

2^1312570 is an apocalyptic number.

1312570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312570 is an abundant number, since it is smaller than the sum of its proper divisors (1548998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312570 is a wasteful number, since it uses less digits than its factorization.

1312570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1312570 is about 1145.6744738363. The cubic root of 1312570 is about 109.4899249155.

It can be divided in two parts, 131 and 2570, that added together give a triangular number (2701 = T₇₃).

The spelling of 1312570 in words is "one million, three hundred twelve thousand, five hundred seventy".