242581959 has 40 divisors (see below), whose sum is σ = 387335520. Its totient is φ = 150764544.

The previous prime is 242581957. The next prime is 242582003. The reversal of 242581959 is 959185242.

It is a happy number.

It is not a de Polignac number, because 242581959 - 2¹ = 242581957 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242581957) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 154822 + ... + 156380.

It is an arithmetic number, because the mean of its divisors is an integer number (9683388).

Almost surely, 2^242581959 is an apocalyptic number.

242581959 is a deficient number, since it is larger than the sum of its proper divisors (144753561).

242581959 is a wasteful number, since it uses less digits than its factorization.

242581959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1692 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 242581959 is about 15575.0428249813. The cubic root of 242581959 is about 623.6670977620.

The spelling of 242581959 in words is "two hundred forty-two million, five hundred eighty-one thousand, nine hundred fifty-nine".