13540304506 has 4 divisors (see below), whose sum is σ = 20310456762. Its totient is φ = 6770152252.

The previous prime is 13540304467. The next prime is 13540304509. The reversal of 13540304506 is 60540304531.

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

It can be written as a sum of positive squares in only one way, i.e., 9680788881 + 3859515625 = 98391^2 + 62125^2 .

It is a super-2 number, since 2×13540304506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13540304509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385076125 + ... + 3385076128.

Almost surely, 2^13540304506 is an apocalyptic number.

13540304506 is a deficient number, since it is larger than the sum of its proper divisors (6770152256).

13540304506 is an equidigital number, since it uses as much as digits as its factorization.

13540304506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770152255.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 13540304506 in words is "thirteen billion, five hundred forty million, three hundred four thousand, five hundred six".