8181214 has 8 divisors (see below), whose sum is σ = 12300048. Its totient is φ = 4081200.

The previous prime is 8181211. The next prime is 8181221. The reversal of 8181214 is 4121818.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8181211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562 + ... + 5389.

It is an arithmetic number, because the mean of its divisors is an integer number (1537506).

Almost surely, 2^8181214 is an apocalyptic number.

8181214 is a deficient number, since it is larger than the sum of its proper divisors (4118834).

8181214 is a wasteful number, since it uses less digits than its factorization.

8181214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410.

The product of its digits is 512, while the sum is 25.

The square root of 8181214 is about 2860.2821539142. The cubic root of 8181214 is about 201.4988557630.

The spelling of 8181214 in words is "eight million, one hundred eighty-one thousand, two hundred fourteen".