1312349 has 12 divisors (see below), whose sum is σ = 1473600. Its totient is φ = 1165248.

The previous prime is 1312343. The next prime is 1312351. The reversal of 1312349 is 9432131.

It is not a de Polignac number, because 1312349 - 2⁸ = 1312093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5372 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (122800).

2^1312349 is an apocalyptic number.

1312349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1312349 is a deficient number, since it is larger than the sum of its proper divisors (161251).

1312349 is a wasteful number, since it uses less digits than its factorization.

1312349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 275 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 1312349 is about 1145.5780200405. The cubic root of 1312349 is about 109.4837795591.

It can be divided in two parts, 1312 and 349, that added together give a palindrome (1661).

The spelling of 1312349 in words is "one million, three hundred twelve thousand, three hundred forty-nine".