142293729 has 8 divisors (see below), whose sum is σ = 192556960. Its totient is φ = 93446496.

The previous prime is 142293719. The next prime is 142293731. The reversal of 142293729 is 927392241.

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

It is not a de Polignac number, because 142293729 - 2⁴ = 142293713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142293719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353764 + ... + 354165.

It is an arithmetic number, because the mean of its divisors is an integer number (24069620).

Almost surely, 2^142293729 is an apocalyptic number.

It is an amenable number.

142293729 is a deficient number, since it is larger than the sum of its proper divisors (50263231).

142293729 is an equidigital number, since it uses as much as digits as its factorization.

142293729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707999.

The product of its digits is 54432, while the sum is 39.

The square root of 142293729 is about 11928.6935160561. The cubic root of 142293729 is about 522.0698186144.

The spelling of 142293729 in words is "one hundred forty-two million, two hundred ninety-three thousand, seven hundred twenty-nine".