13630440541 has 4 divisors (see below), whose sum is σ = 13630719132. Its totient is φ = 13630161952.

The previous prime is 13630440511. The next prime is 13630440553. The reversal of 13630440541 is 14504403631.

It is a happy number.

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 467467641 + 13162972900 = 21621^2 + 114730^2 .

It is a cyclic number.

It is not a de Polignac number, because 13630440541 - 2¹⁵ = 13630407773 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 (13630440511) 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, 44320 + ... + 170953.

It is an arithmetic number, because the mean of its divisors is an integer number (3407679783).

Almost surely, 2^13630440541 is an apocalyptic number.

It is an amenable number.

13630440541 is a deficient number, since it is larger than the sum of its proper divisors (278591).

13630440541 is an equidigital number, since it uses as much as digits as its factorization.

13630440541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278590.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 13630440541 in words is "thirteen billion, six hundred thirty million, four hundred forty thousand, five hundred forty-one".