242679123 has 24 divisors (see below), whose sum is σ = 360097920. Its totient is φ = 157395840.

The previous prime is 242679119. The next prime is 242679133. The reversal of 242679123 is 321976242.

It is not a de Polignac number, because 242679123 - 2² = 242679119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242679133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176065 + ... + 177437.

It is an arithmetic number, because the mean of its divisors is an integer number (15004080).

Almost surely, 2^242679123 is an apocalyptic number.

242679123 is a deficient number, since it is larger than the sum of its proper divisors (117418797).

242679123 is a wasteful number, since it uses less digits than its factorization.

242679123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1896 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 242679123 is about 15578.1617336578. The cubic root of 242679123 is about 623.7503547106.

The spelling of 242679123 in words is "two hundred forty-two million, six hundred seventy-nine thousand, one hundred twenty-three".