13541440305 has 32 divisors (see below), whose sum is σ = 22417440768. Its totient is φ = 6972811200.

The previous prime is 13541440291. The next prime is 13541440307. The reversal of 13541440305 is 50304414531.

It is not a de Polignac number, because 13541440305 - 2¹⁰ = 13541439281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13541440307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166632 + ... + 234198.

It is an arithmetic number, because the mean of its divisors is an integer number (700545024).

Almost surely, 2^13541440305 is an apocalyptic number.

13541440305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13541440305 is a deficient number, since it is larger than the sum of its proper divisors (8876000463).

13541440305 is a wasteful number, since it uses less digits than its factorization.

13541440305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68037.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13541440305 its reverse (50304414531), we get a palindrome (63845854836).

The spelling of 13541440305 in words is "thirteen billion, five hundred forty-one million, four hundred forty thousand, three hundred five".