1242323747 has 8 divisors (see below), whose sum is σ = 1425457152. Its totient is φ = 1060605000.

The previous prime is 1242323737. The next prime is 1242323749. The reversal of 1242323747 is 7473232421.

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

It is not a de Polignac number, because 1242323747 - 2¹⁰ = 1242322723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242323749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351779 + ... + 355292.

It is an arithmetic number, because the mean of its divisors is an integer number (178182144).

Almost surely, 2^1242323747 is an apocalyptic number.

1242323747 is a deficient number, since it is larger than the sum of its proper divisors (183133405).

1242323747 is an equidigital number, since it uses as much as digits as its factorization.

1242323747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707329.

The product of its digits is 56448, while the sum is 35.

The square root of 1242323747 is about 35246.6132699299. The cubic root of 1242323747 is about 1075.0077510168.

The spelling of 1242323747 in words is "one billion, two hundred forty-two million, three hundred twenty-three thousand, seven hundred forty-seven".