146991146 has 16 divisors (see below), whose sum is σ = 233694720. Its totient is φ = 69101760.

The previous prime is 146991133. The next prime is 146991179. The reversal of 146991146 is 641199641.

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 7 ways as a sum of consecutive naturals, for example, 48545 + ... + 51483.

It is an arithmetic number, because the mean of its divisors is an integer number (14605920).

Almost surely, 2^146991146 is an apocalyptic number.

146991146 is a deficient number, since it is larger than the sum of its proper divisors (86703574).

146991146 is a wasteful number, since it uses less digits than its factorization.

146991146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429.

The product of its digits is 46656, while the sum is 41.

The square root of 146991146 is about 12123.9905146779. The cubic root of 146991146 is about 527.7526126243.

The spelling of 146991146 in words is "one hundred forty-six million, nine hundred ninety-one thousand, one hundred forty-six".