146678138 has 16 divisors (see below), whose sum is σ = 237858720. Its totient is φ = 67600656.

The previous prime is 146678137. The next prime is 146678177. The reversal of 146678138 is 831876641.

146678138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (146678137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50756 + ... + 53567.

It is an arithmetic number, because the mean of its divisors is an integer number (14866170).

Almost surely, 2^146678138 is an apocalyptic number.

146678138 is a deficient number, since it is larger than the sum of its proper divisors (91180582).

146678138 is a wasteful number, since it uses less digits than its factorization.

146678138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104381.

The product of its digits is 193536, while the sum is 44.

The square root of 146678138 is about 12111.0750142174. The cubic root of 146678138 is about 527.3777415578.

The spelling of 146678138 in words is "one hundred forty-six million, six hundred seventy-eight thousand, one hundred thirty-eight".