141805138 has 16 divisors (see below), whose sum is σ = 214857720. Its totient is φ = 70189056.

The previous prime is 141805121. The next prime is 141805141. The reversal of 141805138 is 831508141.

It can be written as a sum of positive squares in 4 ways, for example, as 110187009 + 31618129 = 10497^2 + 5623^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184018 + ... + 184786.

Almost surely, 2^141805138 is an apocalyptic number.

141805138 is a deficient number, since it is larger than the sum of its proper divisors (73052582).

141805138 is a wasteful number, since it uses less digits than its factorization.

141805138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 141805138 is about 11908.1962530015. The cubic root of 141805138 is about 521.4715933156.

The spelling of 141805138 in words is "one hundred forty-one million, eight hundred five thousand, one hundred thirty-eight".