142685023 has 16 divisors (see below), whose sum is σ = 156143232. Its totient is φ = 129600000.

The previous prime is 142685021. The next prime is 142685027. The reversal of 142685023 is 320586241.

It is a cyclic number.

It is not a de Polignac number, because 142685023 - 2¹ = 142685021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142685021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355623 + ... + 356023.

It is an arithmetic number, because the mean of its divisors is an integer number (9758952).

Almost surely, 2^142685023 is an apocalyptic number.

142685023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142685023 is a deficient number, since it is larger than the sum of its proper divisors (13458209).

142685023 is a wasteful number, since it uses less digits than its factorization.

142685023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 142685023 is about 11945.0836330266. The cubic root of 142685023 is about 522.5479278090.

It can be divided in two parts, 14268 and 5023, that added together give a palindrome (19291).

The spelling of 142685023 in words is "one hundred forty-two million, six hundred eighty-five thousand, twenty-three".