146391144 has 16 divisors (see below), whose sum is σ = 365977920. Its totient is φ = 48797040.

The previous prime is 146391127. The next prime is 146391163. The reversal of 146391144 is 441193641.

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 3 ways as a sum of consecutive naturals, for example, 3049792 + ... + 3049839.

It is an arithmetic number, because the mean of its divisors is an integer number (22873620).

Almost surely, 2^146391144 is an apocalyptic number.

It is an amenable number.

146391144 is an abundant number, since it is smaller than the sum of its proper divisors (219586776).

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

146391144 is a wasteful number, since it uses less digits than its factorization.

146391144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6099640 (or 6099636 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 146391144 is about 12099.2208013574. The cubic root of 146391144 is about 527.0335569562.

The spelling of 146391144 in words is "one hundred forty-six million, three hundred ninety-one thousand, one hundred forty-four".