12229957 has 4 divisors (see below), whose sum is σ = 12292236. Its totient is φ = 12167680.

The previous prime is 12229927. The next prime is 12229961. The reversal of 12229957 is 75992221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75992221 = 1013 ⋅75017.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 5909761 = 2514^2 + 2431^2 .

It is a cyclic number.

It is not a de Polignac number, because 12229957 - 2¹¹ = 12227909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229907) 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, 30844 + ... + 31237.

It is an arithmetic number, because the mean of its divisors is an integer number (3073059).

Almost surely, 2^12229957 is an apocalyptic number.

It is an amenable number.

12229957 is a deficient number, since it is larger than the sum of its proper divisors (62279).

12229957 is an equidigital number, since it uses as much as digits as its factorization.

12229957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62278.

The product of its digits is 22680, while the sum is 37.

The square root of 12229957 is about 3497.1355421259. The cubic root of 12229957 is about 230.3960221974.

The spelling of 12229957 in words is "twelve million, two hundred twenty-nine thousand, nine hundred fifty-seven".