146500140 has 48 divisors (see below), whose sum is σ = 419747328. Its totient is φ = 38157504.

The previous prime is 146500139. The next prime is 146500147. The reversal of 146500140 is 41005641.

146500140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (146500147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25812 + ... + 30971.

It is an arithmetic number, because the mean of its divisors is an integer number (8744736).

Almost surely, 2^146500140 is an apocalyptic number.

146500140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146500140 is an abundant number, since it is smaller than the sum of its proper divisors (273247188).

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

146500140 is a wasteful number, since it uses less digits than its factorization.

146500140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56838 (or 56836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 146500140 is about 12103.7242202555. The cubic root of 146500140 is about 527.1643260202.

Adding to 146500140 its reverse (41005641), we get a palindrome (187505781).

The spelling of 146500140 in words is "one hundred forty-six million, five hundred thousand, one hundred forty".