142105539 has 16 divisors (see below), whose sum is σ = 199228320. Its totient is φ = 89967360.

The previous prime is 142105517. The next prime is 142105553. The reversal of 142105539 is 935501241.

142105539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142105539 - 2¹¹ = 142103491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142105559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8082 + ... + 18695.

It is an arithmetic number, because the mean of its divisors is an integer number (12451770).

Almost surely, 2^142105539 is an apocalyptic number.

142105539 is a deficient number, since it is larger than the sum of its proper divisors (57122781).

142105539 is a wasteful number, since it uses less digits than its factorization.

142105539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26870.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 142105539 is about 11920.8027833699. The cubic root of 142105539 is about 521.8395632959.

The spelling of 142105539 in words is "one hundred forty-two million, one hundred five thousand, five hundred thirty-nine".