12257003 has 4 divisors (see below), whose sum is σ = 13371288. Its totient is φ = 11142720.

The previous prime is 12256987. The next prime is 12257009. The reversal of 12257003 is 30075221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12257003 - 2⁴ = 12256987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12257009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557126 + ... + 557147.

It is an arithmetic number, because the mean of its divisors is an integer number (3342822).

Almost surely, 2^12257003 is an apocalyptic number.

12257003 is a deficient number, since it is larger than the sum of its proper divisors (1114285).

12257003 is a wasteful number, since it uses less digits than its factorization.

12257003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114284.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12257003 is about 3501.0002856327. Note that the first 3 decimals coincide. The cubic root of 12257003 is about 230.5657339700.

It can be divided in two parts, 1225 and 7003, that added together give a palindrome (8228).

The spelling of 12257003 in words is "twelve million, two hundred fifty-seven thousand, three".