181413826 has 8 divisors (see below), whose sum is σ = 296859024. Its totient is φ = 82460820.

The previous prime is 181413809. The next prime is 181413913. The reversal of 181413826 is 628314181.

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

It is a junction number, because it is equal to n+sod(n) for n = 181413791 and 181413800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4123020 + ... + 4123063.

It is an arithmetic number, because the mean of its divisors is an integer number (37107378).

Almost surely, 2^181413826 is an apocalyptic number.

181413826 is a deficient number, since it is larger than the sum of its proper divisors (115445198).

181413826 is a wasteful number, since it uses less digits than its factorization.

181413826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246096.

The product of its digits is 9216, while the sum is 34.

The square root of 181413826 is about 13468.9949884912. The cubic root of 181413826 is about 566.0960539033.

The spelling of 181413826 in words is "one hundred eighty-one million, four hundred thirteen thousand, eight hundred twenty-six".