142407223 has 16 divisors (see below), whose sum is σ = 171774720. Its totient is φ = 115330176.

The previous prime is 142407203. The next prime is 142407257. The reversal of 142407223 is 322704241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142407223 - 2⁹ = 142406711 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 (142407203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57711 + ... + 60127.

It is an arithmetic number, because the mean of its divisors is an integer number (10735920).

Almost surely, 2^142407223 is an apocalyptic number.

142407223 is a deficient number, since it is larger than the sum of its proper divisors (29367497).

142407223 is a wasteful number, since it uses less digits than its factorization.

142407223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 142407223 is about 11933.4497526910. The cubic root of 142407223 is about 522.2085833284.

The spelling of 142407223 in words is "one hundred forty-two million, four hundred seven thousand, two hundred twenty-three".