146991882 has 8 divisors (see below), whose sum is σ = 293983776. Its totient is φ = 48997292.

The previous prime is 146991857. The next prime is 146991893. The reversal of 146991882 is 288199641.

It is a sphenic number, since it is the product of 3 distinct primes.

146991882 is an admirable number.

It is a super-2 number, since 2×146991882² = 43213226747803848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12249318 + ... + 12249329.

It is an arithmetic number, because the mean of its divisors is an integer number (36747972).

Almost surely, 2^146991882 is an apocalyptic number.

146991882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

146991882 is a wasteful number, since it uses less digits than its factorization.

146991882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24498652.

The product of its digits is 248832, while the sum is 48.

The square root of 146991882 is about 12124.0208676825. The cubic root of 146991882 is about 527.7534934603.

The spelling of 146991882 in words is "one hundred forty-six million, nine hundred ninety-one thousand, eight hundred eighty-two".