1313892 has 18 divisors (see below), whose sum is σ = 3321318. Its totient is φ = 437952.

The previous prime is 1313891. The next prime is 1313899. The reversal of 1313892 is 2983131.

It can be written as a sum of positive squares in only one way, i.e., 1313316 + 576 = 1146^2 + 24^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1313891) 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 5 ways as a sum of consecutive naturals, for example, 18213 + ... + 18284.

2^1313892 is an apocalyptic number.

1313892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313892 is an abundant number, since it is smaller than the sum of its proper divisors (2007426).

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

1313892 is a wasteful number, since it uses less digits than its factorization.

1313892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36507 (or 36502 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1313892 is about 1146.2512813515. The cubic root of 1313892 is about 109.5266714288.

The spelling of 1313892 in words is "one million, three hundred thirteen thousand, eight hundred ninety-two".