1312270 has 16 divisors (see below), whose sum is σ = 2375568. Its totient is φ = 521920.

The previous prime is 1312237. The next prime is 1312277. The reversal of 1312270 is 722131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577 + ... + 3043.

It is an arithmetic number, because the mean of its divisors is an integer number (148473).

2^1312270 is an apocalyptic number.

1312270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312270 is a deficient number, since it is larger than the sum of its proper divisors (1063298).

1312270 is a wasteful number, since it uses less digits than its factorization.

1312270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1312270 is about 1145.5435391115. The cubic root of 1312270 is about 109.4815826353.

It can be divided in two parts, 131 and 2270, that added together give a 4-th power (2401 = 7⁴).

The spelling of 1312270 in words is "one million, three hundred twelve thousand, two hundred seventy".