1315442 has 6 divisors (see below), whose sum is σ = 1975599. Its totient is φ = 656910.

The previous prime is 1315441. The next prime is 1315451. The reversal of 1315442 is 2445131.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 657721 = 811^2 + 811^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=811.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1217 + ... + 2027.

2^1315442 is an apocalyptic number.

1315442 is a deficient number, since it is larger than the sum of its proper divisors (660157).

1315442 is an frugal number, since it uses more digits than its factorization.

1315442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 813 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 1315442 is about 1146.9271990846. The cubic root of 1315442 is about 109.5697240862.

The spelling of 1315442 in words is "one million, three hundred fifteen thousand, four hundred forty-two".