12497121 has 24 divisors (see below), whose sum is σ = 22218560. Its totient is φ = 6591456.

The previous prime is 12497101. The next prime is 12497129. The reversal of 12497121 is 12179421.

It is not a de Polignac number, because 12497121 - 2⁷ = 12496993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12497129) 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 23 ways as a sum of consecutive naturals, for example, 6811 + ... + 8448.

Almost surely, 2^12497121 is an apocalyptic number.

It is an amenable number.

12497121 is a deficient number, since it is larger than the sum of its proper divisors (9721439).

12497121 is a wasteful number, since it uses less digits than its factorization.

12497121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15285 (or 15282 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12497121 is about 3535.1267304016. The cubic root of 12497121 is about 232.0616228002.

The spelling of 12497121 in words is "twelve million, four hundred ninety-seven thousand, one hundred twenty-one".