13540204541 has 2 divisors, whose sum is σ = 13540204542. Its totient is φ = 13540204540.

The previous prime is 13540204529. The next prime is 13540204549. The reversal of 13540204541 is 14540204531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12097800100 + 1442404441 = 109990^2 + 37979^2 .

It is a cyclic number.

It is not a de Polignac number, because 13540204541 - 2¹⁰ = 13540203517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13540204549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6770102270 + 6770102271.

It is an arithmetic number, because the mean of its divisors is an integer number (6770102271).

Almost surely, 2^13540204541 is an apocalyptic number.

It is an amenable number.

13540204541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13540204541 is an equidigital number, since it uses as much as digits as its factorization.

13540204541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 13540204541 in words is "thirteen billion, five hundred forty million, two hundred four thousand, five hundred forty-one".