1307242 has 4 divisors (see below), whose sum is σ = 1960866. Its totient is φ = 653620.

The previous prime is 1307221. The next prime is 1307261. The reversal of 1307242 is 2427031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2427031 = 73 ⋅33247.

It can be written as a sum of positive squares in only one way, i.e., 1121481 + 185761 = 1059^2 + 431^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326809 + ... + 326812.

2^1307242 is an apocalyptic number.

1307242 is a deficient number, since it is larger than the sum of its proper divisors (653624).

1307242 is an equidigital number, since it uses as much as digits as its factorization.

1307242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653623.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1307242 is about 1143.3468415140. The cubic root of 1307242 is about 109.3415763995.

The spelling of 1307242 in words is "one million, three hundred seven thousand, two hundred forty-two".