146023140 has 48 divisors (see below), whose sum is σ = 418844160. Its totient is φ = 37989120.

The previous prime is 146023117. The next prime is 146023177. The reversal of 146023140 is 41320641.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27220 + ... + 32139.

It is an arithmetic number, because the mean of its divisors is an integer number (8725920).

Almost surely, 2^146023140 is an apocalyptic number.

146023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146023140 is an abundant number, since it is smaller than the sum of its proper divisors (272821020).

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

146023140 is a wasteful number, since it uses less digits than its factorization.

146023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59412 (or 59410 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 146023140 is about 12084.0034756698. The cubic root of 146023140 is about 526.5915602631.

Adding to 146023140 its reverse (41320641), we get a palindrome (187343781).

The spelling of 146023140 in words is "one hundred forty-six million, twenty-three thousand, one hundred forty".