142205022 has 24 divisors (see below), whose sum is σ = 312334464. Its totient is φ = 46751904.

The previous prime is 142204961. The next prime is 142205027. The reversal of 142205022 is 220502241.

142205022 is a `hidden beast` number, since 142 + 20 + 502 + 2 = 666.

142205022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142204986 and 142205004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142205027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52798 + ... + 55425.

It is an arithmetic number, because the mean of its divisors is an integer number (13013936).

Almost surely, 2^142205022 is an apocalyptic number.

142205022 is an abundant number, since it is smaller than the sum of its proper divisors (170129442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142205022 is a wasteful number, since it uses less digits than its factorization.

142205022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108304 (or 108301 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 142205022 is about 11924.9747169543. The cubic root of 142205022 is about 521.9613086221.

Adding to 142205022 its reverse (220502241), we get a palindrome (362707263).

The spelling of 142205022 in words is "one hundred forty-two million, two hundred five thousand, twenty-two".