12200749 has 4 divisors (see below), whose sum is σ = 13309920. Its totient is φ = 11091580.

The previous prime is 12200729. The next prime is 12200761. The reversal of 12200749 is 94700221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12200749 - 2⁷ = 12200621 is a prime.

It is a super-2 number, since 2×12200749² = 297716552322002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200719) 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 3 ways as a sum of consecutive naturals, for example, 554569 + ... + 554590.

It is an arithmetic number, because the mean of its divisors is an integer number (3327480).

Almost surely, 2^12200749 is an apocalyptic number.

It is an amenable number.

12200749 is a deficient number, since it is larger than the sum of its proper divisors (1109171).

12200749 is a wasteful number, since it uses less digits than its factorization.

12200749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109170.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12200749 is about 3492.9570567071. The cubic root of 12200749 is about 230.2124627820.

The spelling of 12200749 in words is "twelve million, two hundred thousand, seven hundred forty-nine".