12409055 has 4 divisors (see below), whose sum is σ = 14890872. Its totient is φ = 9927240.

The previous prime is 12409037. The next prime is 12409091. The reversal of 12409055 is 55090421.

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

It is not a de Polignac number, because 12409055 - 2¹⁴ = 12392671 is a prime.

It is a Duffinian number.

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, 1240901 + ... + 1240910.

It is an arithmetic number, because the mean of its divisors is an integer number (3722718).

Almost surely, 2^12409055 is an apocalyptic number.

12409055 is a deficient number, since it is larger than the sum of its proper divisors (2481817).

12409055 is an equidigital number, since it uses as much as digits as its factorization.

12409055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481816.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 12409055 is about 3522.6488612974. The cubic root of 12409055 is about 231.5152320772.

Adding to 12409055 its reverse (55090421), we get a palindrome (67499476).

The spelling of 12409055 in words is "twelve million, four hundred nine thousand, fifty-five".