12230157 has 8 divisors (see below), whose sum is σ = 17266176. Its totient is φ = 7673792.

The previous prime is 12230149. The next prime is 12230161. The reversal of 12230157 is 75103221.

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

It is a cyclic number.

It is not a de Polignac number, because 12230157 - 2³ = 12230149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119853 + ... + 119954.

It is an arithmetic number, because the mean of its divisors is an integer number (2158272).

Almost surely, 2^12230157 is an apocalyptic number.

12230157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12230157 is a deficient number, since it is larger than the sum of its proper divisors (5036019).

12230157 is a wasteful number, since it uses less digits than its factorization.

12230157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239827.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12230157 is about 3497.1641368400. The cubic root of 12230157 is about 230.3972781013.

Adding to 12230157 its reverse (75103221), we get a palindrome (87333378).

The spelling of 12230157 in words is "twelve million, two hundred thirty thousand, one hundred fifty-seven".