8121214 has 16 divisors (see below), whose sum is σ = 12418560. Its totient is φ = 3982680.

The previous prime is 8121209. The next prime is 8121283. The reversal of 8121214 is 4121218.

It is a happy number.

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

It is a plaindrome in base 14.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 8121191 and 8121200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36307 + ... + 36529.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^8121214 is an apocalyptic number.

8121214 is a deficient number, since it is larger than the sum of its proper divisors (4297346).

8121214 is a wasteful number, since it uses less digits than its factorization.

8121214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its digits is 128, while the sum is 19.

The square root of 8121214 is about 2849.7743770341. The cubic root of 8121214 is about 201.0050575033.

The spelling of 8121214 in words is "eight million, one hundred twenty-one thousand, two hundred fourteen".