142666131 has 16 divisors (see below), whose sum is σ = 195148800. Its totient is φ = 92658720.

The previous prime is 142666099. The next prime is 142666151. The reversal of 142666131 is 131666241.

It is not a de Polignac number, because 142666131 - 2⁵ = 142666099 is a prime.

It is a super-2 number, since 2×142666131² = 40707249869018322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142666151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58270 + ... + 60668.

It is an arithmetic number, because the mean of its divisors is an integer number (12196800).

Almost surely, 2^142666131 is an apocalyptic number.

142666131 is a deficient number, since it is larger than the sum of its proper divisors (52482669).

142666131 is a wasteful number, since it uses less digits than its factorization.

142666131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906.

The product of its digits is 5184, while the sum is 30.

The square root of 142666131 is about 11944.2928212599. The cubic root of 142666131 is about 522.5248643952.

The spelling of 142666131 in words is "one hundred forty-two million, six hundred sixty-six thousand, one hundred thirty-one".