146091138 has 8 divisors (see below), whose sum is σ = 292182288. Its totient is φ = 48697044.

The previous prime is 146091131. The next prime is 146091173. The reversal of 146091138 is 831190641.

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

146091138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 146091099 and 146091108.

It is not an unprimeable number, because it can be changed into a prime (146091131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12174256 + ... + 12174267.

It is an arithmetic number, because the mean of its divisors is an integer number (36522786).

Almost surely, 2^146091138 is an apocalyptic number.

146091138 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.

146091138 is a wasteful number, since it uses less digits than its factorization.

146091138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24348528.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 146091138 is about 12086.8167025069. The cubic root of 146091138 is about 526.6732861601.

The spelling of 146091138 in words is "one hundred forty-six million, ninety-one thousand, one hundred thirty-eight".