242859587 has 4 divisors (see below), whose sum is σ = 242891880. Its totient is φ = 242827296.

The previous prime is 242859559. The next prime is 242859607. The reversal of 242859587 is 785958242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242859587 - 2¹⁰ = 242858563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242859187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739 + ... + 22107.

It is an arithmetic number, because the mean of its divisors is an integer number (60722970).

Almost surely, 2^242859587 is an apocalyptic number.

242859587 is a deficient number, since it is larger than the sum of its proper divisors (32293).

242859587 is a wasteful number, since it uses less digits than its factorization.

242859587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32292.

The product of its digits is 1612800, while the sum is 50.

The square root of 242859587 is about 15583.9528682552. The cubic root of 242859587 is about 623.9049300087.

The spelling of 242859587 in words is "two hundred forty-two million, eight hundred fifty-nine thousand, five hundred eighty-seven".