146668158 has 80 divisors (see below), whose sum is σ = 404527200. Its totient is φ = 38677824.

The previous prime is 146668157. The next prime is 146668183. The reversal of 146668158 is 851866641.

146668158 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×146668158² = 43023097142225928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146668157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9768 + ... + 19716.

It is an arithmetic number, because the mean of its divisors is an integer number (5056590).

Almost surely, 2^146668158 is an apocalyptic number.

146668158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146668158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202263600).

146668158 is an abundant number, since it is smaller than the sum of its proper divisors (257859042).

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

146668158 is a wasteful number, since it uses less digits than its factorization.

146668158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9983 (or 9974 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 146668158 is about 12110.6629876320. The cubic root of 146668158 is about 527.3657803359.

The spelling of 146668158 in words is "one hundred forty-six million, six hundred sixty-eight thousand, one hundred fifty-eight".