142042131 has 96 divisors (see below), whose sum is σ = 269568000. Its totient is φ = 71406720.

The previous prime is 142042129. The next prime is 142042141. The reversal of 142042131 is 131240241.

It is not a de Polignac number, because 142042131 - 2¹ = 142042129 is a prime.

It is a super-2 number, since 2×142042131² = 40351933958042322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142042111) 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 95 ways as a sum of consecutive naturals, for example, 1595935 + ... + 1596023.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^142042131 is an apocalyptic number.

142042131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142042131 is a deficient number, since it is larger than the sum of its proper divisors (127525869).

142042131 is a wasteful number, since it uses less digits than its factorization.

142042131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142042131 is about 11918.1429341991. The cubic root of 142042131 is about 521.7619361888.

Adding to 142042131 its reverse (131240241), we get a palindrome (273282372).

The spelling of 142042131 in words is "one hundred forty-two million, forty-two thousand, one hundred thirty-one".