12265213 has 4 divisors (see below), whose sum is σ = 12316348. Its totient is φ = 12214080.

The previous prime is 12265171. The next prime is 12265229. The reversal of 12265213 is 31256221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31256221 = 167 ⋅187163.

It can be written as a sum of positive squares in 2 ways, for example, as 3247204 + 9018009 = 1802^2 + 3003^2 .

It is a cyclic number.

It is not a de Polignac number, because 12265213 - 2²¹ = 10168061 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 (12265613) 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, 25206 + ... + 25687.

It is an arithmetic number, because the mean of its divisors is an integer number (3079087).

Almost surely, 2^12265213 is an apocalyptic number.

It is an amenable number.

12265213 is a deficient number, since it is larger than the sum of its proper divisors (51135).

12265213 is an equidigital number, since it uses as much as digits as its factorization.

12265213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51134.

The product of its digits is 720, while the sum is 22.

The square root of 12265213 is about 3502.1726113942. The cubic root of 12265213 is about 230.6172017496.

It can be divided in two parts, 12 and 265213, that added together give a square (265225 = 515²).

The spelling of 12265213 in words is "twelve million, two hundred sixty-five thousand, two hundred thirteen".