146385784 has 16 divisors (see below), whose sum is σ = 275073120. Its totient is φ = 73032960.

The previous prime is 146385781. The next prime is 146385791. The reversal of 146385784 is 487583641.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146385781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16057 + ... + 23464.

It is an arithmetic number, because the mean of its divisors is an integer number (17192070).

Almost surely, 2^146385784 is an apocalyptic number.

It is an amenable number.

146385784 is a deficient number, since it is larger than the sum of its proper divisors (128687336).

146385784 is a wasteful number, since it uses less digits than its factorization.

146385784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39990 (or 39986 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 146385784 is about 12098.9992974626. Note that the first 3 decimals coincide. The cubic root of 146385784 is about 527.0271245672.

The spelling of 146385784 in words is "one hundred forty-six million, three hundred eighty-five thousand, seven hundred eighty-four".