142665134 has 4 divisors (see below), whose sum is σ = 213997704. Its totient is φ = 71332566.

The previous prime is 142665121. The next prime is 142665151. The reversal of 142665134 is 431566241.

142665134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431566241 = 1109 ⋅389149.

It is a self number, because there is not a number n which added to its sum of digits gives 142665134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35666282 + ... + 35666285.

It is an arithmetic number, because the mean of its divisors is an integer number (53499426).

Almost surely, 2^142665134 is an apocalyptic number.

142665134 is a deficient number, since it is larger than the sum of its proper divisors (71332570).

142665134 is an equidigital number, since it uses as much as digits as its factorization.

142665134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71332569.

The product of its digits is 17280, while the sum is 32.

The square root of 142665134 is about 11944.2510857734. The cubic root of 142665134 is about 522.5236471979.

The spelling of 142665134 in words is "one hundred forty-two million, six hundred sixty-five thousand, one hundred thirty-four".