242631523 has 2 divisors, whose sum is σ = 242631524. Its totient is φ = 242631522.

The previous prime is 242631503. The next prime is 242631527. The reversal of 242631523 is 325136242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242631523 - 2⁵ = 242631491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242631491 and 242631500.

It is not a weakly prime, because it can be changed into another prime (242631527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121315761 + 121315762.

It is an arithmetic number, because the mean of its divisors is an integer number (121315762).

Almost surely, 2^242631523 is an apocalyptic number.

242631523 is a deficient number, since it is larger than the sum of its proper divisors (1).

242631523 is an equidigital number, since it uses as much as digits as its factorization.

242631523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 242631523 is about 15576.6338789868. The cubic root of 242631523 is about 623.7095704602.

Adding to 242631523 its reverse (325136242), we get a palindrome (567767765).

The spelling of 242631523 in words is "two hundred forty-two million, six hundred thirty-one thousand, five hundred twenty-three".