12355445 has 4 divisors (see below), whose sum is σ = 14826540. Its totient is φ = 9884352.

The previous prime is 12355433. The next prime is 12355451. The reversal of 12355445 is 54455321.

12355445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6195121 + 6160324 = 2489^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12355445 - 2⁶ = 12355381 is a prime.

It is a super-2 number, since 2×12355445² = 305314042296050, which contains 22 as substring.

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, 1235540 + ... + 1235549.

It is an arithmetic number, because the mean of its divisors is an integer number (3706635).

Almost surely, 2^12355445 is an apocalyptic number.

It is an amenable number.

12355445 is a deficient number, since it is larger than the sum of its proper divisors (2471095).

12355445 is an equidigital number, since it uses as much as digits as its factorization.

12355445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471094.

The product of its digits is 12000, while the sum is 29.

The square root of 12355445 is about 3515.0312943130. The cubic root of 12355445 is about 231.1813509401.

The spelling of 12355445 in words is "twelve million, three hundred fifty-five thousand, four hundred forty-five".