142790129 has 4 divisors (see below), whose sum is σ = 144510576. Its totient is φ = 141069684.

The previous prime is 142790101. The next prime is 142790161. The reversal of 142790129 is 921097241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142790129 - 2⁸ = 142789873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142790189) 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 3 ways as a sum of consecutive naturals, for example, 860099 + ... + 860264.

It is an arithmetic number, because the mean of its divisors is an integer number (36127644).

Almost surely, 2^142790129 is an apocalyptic number.

It is an amenable number.

142790129 is a deficient number, since it is larger than the sum of its proper divisors (1720447).

142790129 is an equidigital number, since it uses as much as digits as its factorization.

142790129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720446.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 142790129 is about 11949.4823737265. The cubic root of 142790129 is about 522.6762043931.

The spelling of 142790129 in words is "one hundred forty-two million, seven hundred ninety thousand, one hundred twenty-nine".