1312356 has 12 divisors (see below), whose sum is σ = 3062192. Its totient is φ = 437448.

The previous prime is 1312351. The next prime is 1312373. The reversal of 1312356 is 6532131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1312351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54670 + ... + 54693.

2^1312356 is an apocalyptic number.

It is an amenable number.

1312356 is an abundant number, since it is smaller than the sum of its proper divisors (1749836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312356 is a wasteful number, since it uses less digits than its factorization.

1312356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109370 (or 109368 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 1312356 is about 1145.5810752627. The cubic root of 1312356 is about 109.4839742190.

Adding to 1312356 its reverse (6532131), we get a palindrome (7844487).

The spelling of 1312356 in words is "one million, three hundred twelve thousand, three hundred fifty-six".