146388140 has 24 divisors (see below), whose sum is σ = 308000112. Its totient is φ = 58443840.

The previous prime is 146388133. The next prime is 146388149. The reversal of 146388140 is 41883641.

146388140 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 146388140.

It is not an unprimeable number, because it can be changed into a prime (146388149) 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, 4250 + ... + 17630.

It is an arithmetic number, because the mean of its divisors is an integer number (12833338).

Almost surely, 2^146388140 is an apocalyptic number.

146388140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146388140 is an abundant number, since it is smaller than the sum of its proper divisors (161611972).

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

146388140 is a wasteful number, since it uses less digits than its factorization.

146388140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13937 (or 13935 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 146388140 is about 12099.0966604949. The cubic root of 146388140 is about 527.0299519575.

The spelling of 146388140 in words is "one hundred forty-six million, three hundred eighty-eight thousand, one hundred forty".