142155022 has 16 divisors (see below), whose sum is σ = 216200880. Its totient is φ = 70095168.

The previous prime is 142155007. The next prime is 142155031. The reversal of 142155022 is 220551241.

It is a junction number, because it is equal to n+sod(n) for n = 142154984 and 142155002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42018 + ... + 45274.

It is an arithmetic number, because the mean of its divisors is an integer number (13512555).

Almost surely, 2^142155022 is an apocalyptic number.

142155022 is a deficient number, since it is larger than the sum of its proper divisors (74045858).

142155022 is a wasteful number, since it uses less digits than its factorization.

142155022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 142155022 is about 11922.8780921387. The cubic root of 142155022 is about 521.9001267116.

The spelling of 142155022 in words is "one hundred forty-two million, one hundred fifty-five thousand, twenty-two".