13540154233 has 4 divisors (see below), whose sum is σ = 13674215268. Its totient is φ = 13406093200.

The previous prime is 13540154227. The next prime is 13540154249. The reversal of 13540154233 is 33245104531.

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 5702062144 + 7838092089 = 75512^2 + 88533^2 .

It is a cyclic number.

It is not a de Polignac number, because 13540154233 - 2⁹ = 13540153721 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13540154195 and 13540154204.

It is not an unprimeable number, because it can be changed into a prime (13540154293) 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, 67030366 + ... + 67030567.

It is an arithmetic number, because the mean of its divisors is an integer number (3418553817).

Almost surely, 2^13540154233 is an apocalyptic number.

It is an amenable number.

13540154233 is a deficient number, since it is larger than the sum of its proper divisors (134061035).

13540154233 is a wasteful number, since it uses less digits than its factorization.

13540154233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134061034.

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

Adding to 13540154233 its reverse (33245104531), we get a palindrome (46785258764).

The spelling of 13540154233 in words is "thirteen billion, five hundred forty million, one hundred fifty-four thousand, two hundred thirty-three".