12262645 has 4 divisors (see below), whose sum is σ = 14715180. Its totient is φ = 9810112.

The previous prime is 12262631. The next prime is 12262667. The reversal of 12262645 is 54626221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54626221 = 13 ⋅4202017.

It can be written as a sum of positive squares in 2 ways, for example, as 7091569 + 5171076 = 2663^2 + 2274^2 .

It is a cyclic number.

It is not a de Polignac number, because 12262645 - 2¹³ = 12254453 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226260 + ... + 1226269.

It is an arithmetic number, because the mean of its divisors is an integer number (3678795).

Almost surely, 2^12262645 is an apocalyptic number.

It is an amenable number.

12262645 is a deficient number, since it is larger than the sum of its proper divisors (2452535).

12262645 is an equidigital number, since it uses as much as digits as its factorization.

12262645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452534.

The product of its digits is 5760, while the sum is 28.

The square root of 12262645 is about 3501.8059626427. The cubic root of 12262645 is about 230.6011056489.

Adding to 12262645 its reverse (54626221), we get a palindrome (66888866).

The spelling of 12262645 in words is "twelve million, two hundred sixty-two thousand, six hundred forty-five".