248742943 has 2 divisors, whose sum is σ = 248742944. Its totient is φ = 248742942.

The previous prime is 248742919. The next prime is 248742959. The reversal of 248742943 is 349247842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248742943 - 2⁵ = 248742911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248742943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248742913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124371471 + 124371472.

It is an arithmetic number, because the mean of its divisors is an integer number (124371472).

Almost surely, 2^248742943 is an apocalyptic number.

248742943 is a deficient number, since it is larger than the sum of its proper divisors (1).

248742943 is an equidigital number, since it uses as much as digits as its factorization.

248742943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 43.

The square root of 248742943 is about 15771.5865720605. The cubic root of 248742943 is about 628.9028885659.

The spelling of 248742943 in words is "two hundred forty-eight million, seven hundred forty-two thousand, nine hundred forty-three".