15541421341 has 4 divisors (see below), whose sum is σ = 15543726112. Its totient is φ = 15539116572.

The previous prime is 15541421251. The next prime is 15541421351. The reversal of 15541421341 is 14312414551.

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 not a de Polignac number, because 15541421341 - 2¹¹ = 15541419293 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 (15541421351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142241 + ... + 1155766.

It is an arithmetic number, because the mean of its divisors is an integer number (3885931528).

Almost surely, 2^15541421341 is an apocalyptic number.

It is an amenable number.

15541421341 is a deficient number, since it is larger than the sum of its proper divisors (2304771).

15541421341 is an equidigital number, since it uses as much as digits as its factorization.

15541421341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304770.

The product of its digits is 9600, while the sum is 31.

Adding to 15541421341 its reverse (14312414551), we get a palindrome (29853835892).

The spelling of 15541421341 in words is "fifteen billion, five hundred forty-one million, four hundred twenty-one thousand, three hundred forty-one".