146233140 has 24 divisors (see below), whose sum is σ = 409452960. Its totient is φ = 38995488.

The previous prime is 146233123. The next prime is 146233151. The reversal of 146233140 is 41332641.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 146233140.

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, 1218550 + ... + 1218669.

It is an arithmetic number, because the mean of its divisors is an integer number (17060540).

Almost surely, 2^146233140 is an apocalyptic number.

146233140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146233140 is an abundant number, since it is smaller than the sum of its proper divisors (263219820).

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

146233140 is a wasteful number, since it uses less digits than its factorization.

146233140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437231 (or 2437229 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 146233140 is about 12092.6895271482. The cubic root of 146233140 is about 526.8438747445.

Adding to 146233140 its reverse (41332641), we get a palindrome (187565781).

The spelling of 146233140 in words is "one hundred forty-six million, two hundred thirty-three thousand, one hundred forty".