142223893 has 16 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 118250496.

The previous prime is 142223843. The next prime is 142223897. The reversal of 142223893 is 398322241.

It is a happy number.

It is not a de Polignac number, because 142223893 - 2¹³ = 142215701 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 (142223897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115680 + ... + 116902.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2^142223893 is an apocalyptic number.

It is an amenable number.

142223893 is a deficient number, since it is larger than the sum of its proper divisors (25219307).

142223893 is a wasteful number, since it uses less digits than its factorization.

142223893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716.

The product of its digits is 20736, while the sum is 34.

The square root of 142223893 is about 11925.7659292810. The cubic root of 142223893 is about 521.9843961709.

The spelling of 142223893 in words is "one hundred forty-two million, two hundred twenty-three thousand, eight hundred ninety-three".