1242707 has 4 divisors (see below), whose sum is σ = 1256760. Its totient is φ = 1228656.

The previous prime is 1242643. The next prime is 1242739. The reversal of 1242707 is 7072421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1242707 - 2⁶ = 1242643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6893 + ... + 7070.

It is an arithmetic number, because the mean of its divisors is an integer number (314190).

2^1242707 is an apocalyptic number.

1242707 is a deficient number, since it is larger than the sum of its proper divisors (14053).

1242707 is an equidigital number, since it uses as much as digits as its factorization.

1242707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14052.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 1242707 is about 1114.7676888034. The cubic root of 1242707 is about 107.5118285163.

The spelling of 1242707 in words is "one million, two hundred forty-two thousand, seven hundred seven".