181340835 has 16 divisors (see below), whose sum is σ = 312464544. Its totient is φ = 89275392.

The previous prime is 181340813. The next prime is 181340837. The reversal of 181340835 is 538043181.

181340835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 181340835 - 2⁶ = 181340771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181340796 and 181340805.

It is not an unprimeable number, because it can be changed into a prime (181340837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464782 + ... + 465171.

It is an arithmetic number, because the mean of its divisors is an integer number (19529034).

Almost surely, 2^181340835 is an apocalyptic number.

181340835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

181340835 is a deficient number, since it is larger than the sum of its proper divisors (131123709).

181340835 is a wasteful number, since it uses less digits than its factorization.

181340835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929974.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 181340835 is about 13466.2851224827. The cubic root of 181340835 is about 566.0201216901.

The spelling of 181340835 in words is "one hundred eighty-one million, three hundred forty thousand, eight hundred thirty-five".