1312507 has 8 divisors (see below), whose sum is σ = 1516256. Its totient is φ = 1112832.

The previous prime is 1312471. The next prime is 1312513. The reversal of 1312507 is 7052131.

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

It is not a de Polignac number, because 1312507 - 2⁷ = 1312379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288 + ... + 1645.

It is an arithmetic number, because the mean of its divisors is an integer number (189532).

2^1312507 is an apocalyptic number.

1312507 is a deficient number, since it is larger than the sum of its proper divisors (203749).

1312507 is an equidigital number, since it uses as much as digits as its factorization.

1312507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

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

The square root of 1312507 is about 1145.6469787853. The cubic root of 1312507 is about 109.4881731421.

Adding to 1312507 its reverse (7052131), we get a palindrome (8364638).

The spelling of 1312507 in words is "one million, three hundred twelve thousand, five hundred seven".