142223331 has 8 divisors (see below), whose sum is σ = 190904400. Its totient is φ = 94178912.

The previous prime is 142223311. The next prime is 142223339. The reversal of 142223331 is 133322241.

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 142223331 - 2⁶ = 142223267 is a prime.

It is a super-2 number, since 2×142223331² = 40454951761471122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142223298 and 142223307.

It is not an unprimeable number, because it can be changed into a prime (142223339) 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, 158640 + ... + 159533.

It is an arithmetic number, because the mean of its divisors is an integer number (23863050).

Almost surely, 2^142223331 is an apocalyptic number.

142223331 is a deficient number, since it is larger than the sum of its proper divisors (48681069).

142223331 is a wasteful number, since it uses less digits than its factorization.

142223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318325.

The product of its digits is 864, while the sum is 21.

The square root of 142223331 is about 11925.7423668298. The cubic root of 142223331 is about 521.9837086268.

Adding to 142223331 its reverse (133322241), we get a palindrome (275545572).

It can be divided in two parts, 1422 and 23331, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 142223331 in words is "one hundred forty-two million, two hundred twenty-three thousand, three hundred thirty-one".