1315242 has 24 divisors (see below), whose sum is σ = 2885220. Its totient is φ = 432960.

The previous prime is 1315231. The next prime is 1315243. The reversal of 1315242 is 2425131.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 103041 = 1101^2 + 321^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1315243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1192 + ... + 2012.

2^1315242 is an apocalyptic number.

1315242 is an abundant number, since it is smaller than the sum of its proper divisors (1569978).

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

1315242 is a wasteful number, since it uses less digits than its factorization.

1315242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 915 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1315242 is about 1146.8400062781. The cubic root of 1315242 is about 109.5641708057.

The spelling of 1315242 in words is "one million, three hundred fifteen thousand, two hundred forty-two".