146649188 has 24 divisors (see below), whose sum is σ = 293856192. Its totient is φ = 62730144.

The previous prime is 146649187. The next prime is 146649193. The reversal of 146649188 is 881946641.

It is not an unprimeable number, because it can be changed into a prime (146649187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10895 + ... + 20297.

It is an arithmetic number, because the mean of its divisors is an integer number (12244008).

Almost surely, 2^146649188 is an apocalyptic number.

It is an amenable number.

146649188 is an abundant number, since it is smaller than the sum of its proper divisors (147207004).

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

146649188 is a wasteful number, since it uses less digits than its factorization.

146649188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971 (or 9969 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 146649188 is about 12109.8797681893. The cubic root of 146649188 is about 527.3430429303.

The spelling of 146649188 in words is "one hundred forty-six million, six hundred forty-nine thousand, one hundred eighty-eight".