248742523 has 2 divisors, whose sum is σ = 248742524. Its totient is φ = 248742522.

The previous prime is 248742443. The next prime is 248742563. The reversal of 248742523 is 325247842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248742523 is a prime.

It is not a weakly prime, because it can be changed into another prime (248742563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124371261 + 124371262.

It is an arithmetic number, because the mean of its divisors is an integer number (124371262).

Almost surely, 2^248742523 is an apocalyptic number.

248742523 is a deficient number, since it is larger than the sum of its proper divisors (1).

248742523 is an equidigital number, since it uses as much as digits as its factorization.

248742523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 37.

The square root of 248742523 is about 15771.5732569709. The cubic root of 248742523 is about 628.9025346003.

The spelling of 248742523 in words is "two hundred forty-eight million, seven hundred forty-two thousand, five hundred twenty-three".