8121230 has 32 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 2973312.

The previous prime is 8121209. The next prime is 8121283. The reversal of 8121230 is 321218.

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

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8121199 and 8121208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23096 + ... + 23444.

It is an arithmetic number, because the mean of its divisors is an integer number (496125).

Almost surely, 2^8121230 is an apocalyptic number.

8121230 is the 2327-th pentagonal number.

8121230 is a deficient number, since it is larger than the sum of its proper divisors (7754770).

8121230 is a wasteful number, since it uses less digits than its factorization.

8121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 8121230 is about 2849.7771842725. Note that the first 3 decimals coincide. The cubic root of 8121230 is about 201.0051895065.

Adding to 8121230 its reverse (321218), we get a palindrome (8442448).

The spelling of 8121230 in words is "eight million, one hundred twenty-one thousand, two hundred thirty".