142722089 has 8 divisors (see below), whose sum is σ = 151377408. Its totient is φ = 134095680.

The previous prime is 142722071. The next prime is 142722101. The reversal of 142722089 is 980227241.

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

It is a cyclic number.

It is not a de Polignac number, because 142722089 - 2⁸ = 142721833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142722049) 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, 3404 + ... + 17234.

It is an arithmetic number, because the mean of its divisors is an integer number (18922176).

Almost surely, 2^142722089 is an apocalyptic number.

It is an amenable number.

142722089 is a deficient number, since it is larger than the sum of its proper divisors (8655319).

142722089 is a wasteful number, since it uses less digits than its factorization.

142722089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14455.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 142722089 is about 11946.6350492513. The cubic root of 142722089 is about 522.5931721852.

It can be divided in two parts, 14272 and 2089, that added together give a palindrome (16361).

The spelling of 142722089 in words is "one hundred forty-two million, seven hundred twenty-two thousand, eighty-nine".