142238559 has 8 divisors (see below), whose sum is σ = 189740592. Its totient is φ = 94781120.

The previous prime is 142238549. The next prime is 142238563. The reversal of 142238559 is 955832241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142238559 - 2¹⁷ = 142107487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142238549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814 + ... + 17099.

It is an arithmetic number, because the mean of its divisors is an integer number (23717574).

Almost surely, 2^142238559 is an apocalyptic number.

142238559 is a deficient number, since it is larger than the sum of its proper divisors (47502033).

142238559 is a wasteful number, since it uses less digits than its factorization.

142238559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22297.

The product of its digits is 86400, while the sum is 39.

The square root of 142238559 is about 11926.3808005614. The cubic root of 142238559 is about 522.0023377415.

The spelling of 142238559 in words is "one hundred forty-two million, two hundred thirty-eight thousand, five hundred fifty-nine".