142129828 has 24 divisors (see below), whose sum is σ = 251546400. Its totient is φ = 70264128.

The previous prime is 142129789. The next prime is 142129829. The reversal of 142129828 is 828921241.

It is a happy number.

142129828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142129829) 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 7 ways as a sum of consecutive naturals, for example, 229303 + ... + 229921.

It is an arithmetic number, because the mean of its divisors is an integer number (10481100).

Almost surely, 2^142129828 is an apocalyptic number.

It is an amenable number.

142129828 is a deficient number, since it is larger than the sum of its proper divisors (109416572).

142129828 is a wasteful number, since it uses less digits than its factorization.

142129828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1177 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 142129828 is about 11921.8215051224. The cubic root of 142129828 is about 521.8692929348.

The spelling of 142129828 in words is "one hundred forty-two million, one hundred twenty-nine thousand, eight hundred twenty-eight".