1312351 has 2 divisors, whose sum is σ = 1312352. Its totient is φ = 1312350.

The previous prime is 1312343. The next prime is 1312373. The reversal of 1312351 is 1532131.

It is a weak prime.

It is an emirp because it is prime and its reverse (1532131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312351 - 2³ = 1312343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656175 + 656176.

It is an arithmetic number, because the mean of its divisors is an integer number (656176).

2^1312351 is an apocalyptic number.

1312351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312351 is an equidigital number, since it uses as much as digits as its factorization.

1312351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 16.

The square root of 1312351 is about 1145.5788929620. The cubic root of 1312351 is about 109.4838351763.

Adding to 1312351 its reverse (1532131), we get a palindrome (2844482).

The spelling of 1312351 in words is "one million, three hundred twelve thousand, three hundred fifty-one".