142522164 has 18 divisors (see below), whose sum is σ = 360264450. Its totient is φ = 47507376.

The previous prime is 142522157. The next prime is 142522183. The reversal of 142522164 is 461225241.

It can be written as a sum of positive squares in only one way, i.e., 141419664 + 1102500 = 11892^2 + 1050^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1979439 + ... + 1979510.

Almost surely, 2^142522164 is an apocalyptic number.

It is an amenable number.

142522164 is an abundant number, since it is smaller than the sum of its proper divisors (217742286).

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

142522164 is a wasteful number, since it uses less digits than its factorization.

142522164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958959 (or 3958954 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 142522164 is about 11938.2646980204. The cubic root of 142522164 is about 522.3490421102.

The spelling of 142522164 in words is "one hundred forty-two million, five hundred twenty-two thousand, one hundred sixty-four".