1242396283 has 4 divisors (see below), whose sum is σ = 1242477208. Its totient is φ = 1242315360.

The previous prime is 1242396247. The next prime is 1242396289. The reversal of 1242396283 is 3826932421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242396283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242396289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9573 + ... + 50758.

It is an arithmetic number, because the mean of its divisors is an integer number (310619302).

Almost surely, 2^1242396283 is an apocalyptic number.

1242396283 is a deficient number, since it is larger than the sum of its proper divisors (80925).

1242396283 is an equidigital number, since it uses as much as digits as its factorization.

1242396283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80924.

The product of its digits is 124416, while the sum is 40.

The square root of 1242396283 is about 35247.6422332048. The cubic root of 1242396283 is about 1075.0286728967.

The spelling of 1242396283 in words is "one billion, two hundred forty-two million, three hundred ninety-six thousand, two hundred eighty-three".