12155230 has 16 divisors (see below), whose sum is σ = 22180464. Its totient is φ = 4795200.

The previous prime is 12155191. The next prime is 12155237. The reversal of 12155230 is 3255121.

It is a junction number, because it is equal to n+sod(n) for n = 12155198 and 12155207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7596 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (1386279).

Almost surely, 2^12155230 is an apocalyptic number.

12155230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12155230 is a deficient number, since it is larger than the sum of its proper divisors (10025234).

12155230 is a wasteful number, since it uses less digits than its factorization.

12155230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16731.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12155230 is about 3486.4351420900. The cubic root of 12155230 is about 229.9258109807.

The spelling of 12155230 in words is "twelve million, one hundred fifty-five thousand, two hundred thirty".