12355541 has 4 divisors (see below), whose sum is σ = 13478784. Its totient is φ = 11232300.

The previous prime is 12355513. The next prime is 12355543. The reversal of 12355541 is 14555321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12355541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12355541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355543) 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, 561605 + ... + 561626.

It is an arithmetic number, because the mean of its divisors is an integer number (3369696).

Almost surely, 2^12355541 is an apocalyptic number.

12355541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12355541 is a deficient number, since it is larger than the sum of its proper divisors (1123243).

12355541 is a wasteful number, since it uses less digits than its factorization.

12355541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123242.

The product of its digits is 3000, while the sum is 26.

The square root of 12355541 is about 3515.0449499260. The cubic root of 12355541 is about 231.1819496869.

It can be divided in two parts, 1235 and 5541, that added together give a palindrome (6776).

The spelling of 12355541 in words is "twelve million, three hundred fifty-five thousand, five hundred forty-one".