1315642 has 8 divisors (see below), whose sum is σ = 1981332. Its totient is φ = 655200.

The previous prime is 1315637. The next prime is 1315651. The reversal of 1315642 is 2465131.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 36481 = 1131^2 + 191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609 + ... + 1732.

2^1315642 is an apocalyptic number.

1315642 is a deficient number, since it is larger than the sum of its proper divisors (665690).

1315642 is a wasteful number, since it uses less digits than its factorization.

1315642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its digits is 720, while the sum is 22.

The square root of 1315642 is about 1147.0143852629. The cubic root of 1315642 is about 109.5752768040.

The spelling of 1315642 in words is "one million, three hundred fifteen thousand, six hundred forty-two".