142128022 has 8 divisors (see below), whose sum is σ = 214469136. Its totient is φ = 70638312.

The previous prime is 142128011. The next prime is 142128023. The reversal of 142128022 is 220821241.

142128022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 142127984 and 142128002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142128023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212433 + ... + 213100.

It is an arithmetic number, because the mean of its divisors is an integer number (26808642).

Almost surely, 2^142128022 is an apocalyptic number.

142128022 is a deficient number, since it is larger than the sum of its proper divisors (72341114).

142128022 is a wasteful number, since it uses less digits than its factorization.

142128022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425702.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 142128022 is about 11921.7457614227. The cubic root of 142128022 is about 521.8670825146.

Adding to 142128022 its reverse (220821241), we get a palindrome (362949263).

It can be divided in two parts, 142 and 128022, that added together give a square (128164 = 358²).

The spelling of 142128022 in words is "one hundred forty-two million, one hundred twenty-eight thousand, twenty-two".