142018539 has 32 divisors (see below), whose sum is σ = 212352000. Its totient is φ = 83825280.

The previous prime is 142018519. The next prime is 142018571. The reversal of 142018539 is 935810241.

It is not a de Polignac number, because 142018539 - 2¹⁶ = 141953003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142018519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224754 + ... + 225384.

It is an arithmetic number, because the mean of its divisors is an integer number (6636000).

Almost surely, 2^142018539 is an apocalyptic number.

142018539 is a deficient number, since it is larger than the sum of its proper divisors (70333461).

142018539 is a wasteful number, since it uses less digits than its factorization.

142018539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 142018539 is about 11917.1531415855. The cubic root of 142018539 is about 521.7330478370.

The spelling of 142018539 in words is "one hundred forty-two million, eighteen thousand, five hundred thirty-nine".