181413814 has 8 divisors (see below), whose sum is σ = 273854448. Its totient is φ = 90129000.

The previous prime is 181413809. The next prime is 181413913. The reversal of 181413814 is 418314181.

181413814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 288562 + ... + 289189.

It is an arithmetic number, because the mean of its divisors is an integer number (34231806).

Almost surely, 2^181413814 is an apocalyptic number.

181413814 is a deficient number, since it is larger than the sum of its proper divisors (92440634).

181413814 is a wasteful number, since it uses less digits than its factorization.

181413814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577910.

The product of its digits is 3072, while the sum is 31.

The square root of 181413814 is about 13468.9945430236. The cubic root of 181413814 is about 566.0960414215.

Adding to 181413814 its reverse (418314181), we get a palindrome (599727995).

The spelling of 181413814 in words is "one hundred eighty-one million, four hundred thirteen thousand, eight hundred fourteen".