142856259 has 32 divisors (see below), whose sum is σ = 240167424. Its totient is φ = 73509120.

The previous prime is 142856257. The next prime is 142856279. The reversal of 142856259 is 952658241.

It is not a de Polignac number, because 142856259 - 2¹ = 142856257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142856259.

It is not an unprimeable number, because it can be changed into a prime (142856251) 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, 4812 + ... + 17574.

It is an arithmetic number, because the mean of its divisors is an integer number (7505232).

Almost surely, 2^142856259 is an apocalyptic number.

142856259 is a deficient number, since it is larger than the sum of its proper divisors (97311165).

142856259 is a wasteful number, since it uses less digits than its factorization.

142856259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827.

The product of its digits is 172800, while the sum is 42.

The square root of 142856259 is about 11952.2491188897. The cubic root of 142856259 is about 522.7568804713.

The spelling of 142856259 in words is "one hundred forty-two million, eight hundred fifty-six thousand, two hundred fifty-nine".