142004031 has 16 divisors (see below), whose sum is σ = 204572256. Its totient is φ = 87100416.

The previous prime is 142004029. The next prime is 142004063. The reversal of 142004031 is 130400241.

It is not a de Polignac number, because 142004031 - 2¹ = 142004029 is a prime.

It is a super-2 number, since 2×142004031² = 40330289640497922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142004031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142004431) 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, 6391 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (12785766).

Almost surely, 2^142004031 is an apocalyptic number.

142004031 is a deficient number, since it is larger than the sum of its proper divisors (62568225).

142004031 is a wasteful number, since it uses less digits than its factorization.

142004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11962.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142004031 is about 11916.5444236154. The cubic root of 142004031 is about 521.7152812344.

Adding to 142004031 its reverse (130400241), we get a palindrome (272404272).

The spelling of 142004031 in words is "one hundred forty-two million, four thousand, thirty-one".