12203157 has 8 divisors (see below), whose sum is σ = 16327584. Its totient is φ = 8107088.

The previous prime is 12203153. The next prime is 12203173. The reversal of 12203157 is 75130221.

12203157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12203157 - 2² = 12203153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203153) 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, 6063 + ... + 7820.

It is an arithmetic number, because the mean of its divisors is an integer number (2040948).

Almost surely, 2^12203157 is an apocalyptic number.

It is an amenable number.

12203157 is a deficient number, since it is larger than the sum of its proper divisors (4124427).

12203157 is a wasteful number, since it uses less digits than its factorization.

12203157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179.

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

The square root of 12203157 is about 3493.3017333176. The cubic root of 12203157 is about 230.2276070748.

Adding to 12203157 its reverse (75130221), we get a palindrome (87333378).

The spelling of 12203157 in words is "twelve million, two hundred three thousand, one hundred fifty-seven".