142465220 has 24 divisors (see below), whose sum is σ = 312185664. Its totient is φ = 54508256.

The previous prime is 142465187. The next prime is 142465223. The reversal of 142465220 is 22564241.

142465220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142465220.

It is not an unprimeable number, because it can be changed into a prime (142465223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154394 + ... + 155313.

It is an arithmetic number, because the mean of its divisors is an integer number (13007736).

Almost surely, 2^142465220 is an apocalyptic number.

142465220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142465220 is an abundant number, since it is smaller than the sum of its proper divisors (169720444).

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

142465220 is a wasteful number, since it uses less digits than its factorization.

142465220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309739 (or 309737 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 142465220 is about 11935.8795235207. The cubic root of 142465220 is about 522.2794655491.

The spelling of 142465220 in words is "one hundred forty-two million, four hundred sixty-five thousand, two hundred twenty".