142001229 has 8 divisors (see below), whose sum is σ = 192439072. Its totient is φ = 93115440.

The previous prime is 142001213. The next prime is 142001239. The reversal of 142001229 is 922100241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142001229 - 2⁴ = 142001213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001239) 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, 387799 + ... + 388164.

It is an arithmetic number, because the mean of its divisors is an integer number (24054884).

Almost surely, 2^142001229 is an apocalyptic number.

It is an amenable number.

142001229 is a deficient number, since it is larger than the sum of its proper divisors (50437843).

142001229 is an equidigital number, since it uses as much as digits as its factorization.

142001229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776027.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 142001229 is about 11916.4268553959. The cubic root of 142001229 is about 521.7118497454.

The spelling of 142001229 in words is "one hundred forty-two million, one thousand, two hundred twenty-nine".