146811138 has 16 divisors (see below), whose sum is σ = 309076320. Its totient is φ = 46361376.

The previous prime is 146811121. The next prime is 146811163. The reversal of 146811138 is 831118641.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 146811099 and 146811108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643795 + ... + 644022.

It is an arithmetic number, because the mean of its divisors is an integer number (19317270).

Almost surely, 2^146811138 is an apocalyptic number.

146811138 is an abundant number, since it is smaller than the sum of its proper divisors (162265182).

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

146811138 is a wasteful number, since it uses less digits than its factorization.

146811138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287841.

The product of its digits is 4608, while the sum is 33.

The square root of 146811138 is about 12116.5646121333. The cubic root of 146811138 is about 527.5370928447.

Adding to 146811138 its reverse (831118641), we get a palindrome (977929779).

The spelling of 146811138 in words is "one hundred forty-six million, eight hundred eleven thousand, one hundred thirty-eight".