146881224 has 288 divisors, whose sum is σ = 512179200. Its totient is φ = 37739520.

The previous prime is 146881211. The next prime is 146881271. The reversal of 146881224 is 422188641.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 1859217 + ... + 1859295.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 2^146881224 is an apocalyptic number.

146881224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146881224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256089600).

146881224 is an abundant number, since it is smaller than the sum of its proper divisors (365297976).

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

146881224 is a wasteful number, since it uses less digits than its factorization.

146881224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 139 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 146881224 is about 12119.4564234540. The cubic root of 146881224 is about 527.6210262648.

The spelling of 146881224 in words is "one hundred forty-six million, eight hundred eighty-one thousand, two hundred twenty-four".