142040859 has 8 divisors (see below), whose sum is σ = 190369872. Its totient is φ = 94202880.

The previous prime is 142040837. The next prime is 142040861. The reversal of 142040859 is 958040241.

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

It is not a de Polignac number, because 142040859 - 2¹⁷ = 141909787 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (142040809) 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 7 ways as a sum of consecutive naturals, for example, 122082 + ... + 123239.

It is an arithmetic number, because the mean of its divisors is an integer number (23796234).

Almost surely, 2^142040859 is an apocalyptic number.

142040859 is a deficient number, since it is larger than the sum of its proper divisors (48329013).

142040859 is a wasteful number, since it uses less digits than its factorization.

142040859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245517.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 142040859 is about 11918.0895700611. The cubic root of 142040859 is about 521.7603787092.

The spelling of 142040859 in words is "one hundred forty-two million, forty thousand, eight hundred fifty-nine".