1312402 has 16 divisors (see below), whose sum is σ = 2423232. Its totient is φ = 519120.

The previous prime is 1312397. The next prime is 1312411. The reversal of 1312402 is 2042131.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

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, 3424 + ... + 3787.

It is an arithmetic number, because the mean of its divisors is an integer number (151452).

2^1312402 is an apocalyptic number.

1312402 is a deficient number, since it is larger than the sum of its proper divisors (1110830).

1312402 is a wasteful number, since it uses less digits than its factorization.

1312402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7233.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1312402 is about 1145.6011522341. The cubic root of 1312402 is about 109.4852533952.

Adding to 1312402 its reverse (2042131), we get a palindrome (3354533).

The spelling of 1312402 in words is "one million, three hundred twelve thousand, four hundred two".