142568129 has 12 divisors (see below), whose sum is σ = 157389540. Its totient is φ = 129043200.

The previous prime is 142568059. The next prime is 142568143. The reversal of 142568129 is 921865241.

It can be written as a sum of positive squares in 2 ways, for example, as 103530625 + 39037504 = 10175^2 + 6248^2 .

It is not a de Polignac number, because 142568129 - 2¹² = 142564033 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 142568092 and 142568101.

It is not an unprimeable number, because it can be changed into a prime (142568159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26717 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (13115795).

Almost surely, 2^142568129 is an apocalyptic number.

It is an amenable number.

142568129 is a deficient number, since it is larger than the sum of its proper divisors (14821411).

142568129 is a wasteful number, since it uses less digits than its factorization.

142568129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152 (or 5141 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 142568129 is about 11940.1896551102. The cubic root of 142568129 is about 522.4051905538.

The spelling of 142568129 in words is "one hundred forty-two million, five hundred sixty-eight thousand, one hundred twenty-nine".