142664120 has 32 divisors (see below), whose sum is σ = 322978320. Its totient is φ = 56712960.

The previous prime is 142664117. The next prime is 142664161. The reversal of 142664120 is 21466241.

It is a super-2 number, since 2×142664120² = 40706102270748800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142664120.

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, 4421 + ... + 17460.

Almost surely, 2^142664120 is an apocalyptic number.

142664120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142664120 is an abundant number, since it is smaller than the sum of its proper divisors (180314200).

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

142664120 is a wasteful number, since it uses less digits than its factorization.

142664120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055 (or 22051 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 142664120 is about 11944.2086384992. The cubic root of 142664120 is about 522.5224092401.

The spelling of 142664120 in words is "one hundred forty-two million, six hundred sixty-four thousand, one hundred twenty".