142765129 has 16 divisors (see below), whose sum is σ = 158597712. Its totient is φ = 127657728.

The previous prime is 142765123. The next prime is 142765153. The reversal of 142765129 is 921567241.

It can be written as a sum of positive squares in 8 ways, for example, as 559504 + 142205625 = 748^2 + 11925^2 .

It is a cyclic number.

It is not a de Polignac number, because 142765129 - 2³ = 142765121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (142765121) 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, 140427 + ... + 141439.

It is an arithmetic number, because the mean of its divisors is an integer number (9912357).

Almost surely, 2^142765129 is an apocalyptic number.

It is an amenable number.

142765129 is a deficient number, since it is larger than the sum of its proper divisors (15832583).

142765129 is a wasteful number, since it uses less digits than its factorization.

142765129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its digits is 30240, while the sum is 37.

The square root of 142765129 is about 11948.4362575192. The cubic root of 142765129 is about 522.6456988583.

The spelling of 142765129 in words is "one hundred forty-two million, seven hundred sixty-five thousand, one hundred twenty-nine".