142655920 has 40 divisors (see below), whose sum is σ = 361829520. Its totient is φ = 51874560.

The previous prime is 142655917. The next prime is 142655939. The reversal of 142655920 is 29556241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×142655920² = 40701423022092800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80175 + ... + 81934.

It is an arithmetic number, because the mean of its divisors is an integer number (9045738).

Almost surely, 2^142655920 is an apocalyptic number.

142655920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142655920 is an abundant number, since it is smaller than the sum of its proper divisors (219173600).

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

142655920 is a wasteful number, since it uses less digits than its factorization.

142655920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162133 (or 162127 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 142655920 is about 11943.8653709760. The cubic root of 142655920 is about 522.5123979263.

The spelling of 142655920 in words is "one hundred forty-two million, six hundred fifty-five thousand, nine hundred twenty".