1312455 has 16 divisors (see below), whose sum is σ = 2136960. Its totient is φ = 687648.

The previous prime is 1312411. The next prime is 1312459. The reversal of 1312455 is 5542131.

It is not a de Polignac number, because 1312455 - 2⁶ = 1312391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312459) 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, 144 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (133560).

2^1312455 is an apocalyptic number.

1312455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1312455 is a deficient number, since it is larger than the sum of its proper divisors (824505).

1312455 is a wasteful number, since it uses less digits than its factorization.

1312455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550.

The product of its digits is 600, while the sum is 21.

The square root of 1312455 is about 1145.6242839605. The cubic root of 1312455 is about 109.4867271917.

Adding to 1312455 its reverse (5542131), we get a palindrome (6854586).

The spelling of 1312455 in words is "one million, three hundred twelve thousand, four hundred fifty-five".