135544567801 has 2 divisors, whose sum is σ = 135544567802. Its totient is φ = 135544567800.

The previous prime is 135544567757. The next prime is 135544567831. The reversal of 135544567801 is 108765445531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116588785401 + 18955782400 = 341451^2 + 137680^2 .

It is a cyclic number.

It is not a de Polignac number, because 135544567801 - 2¹¹ = 135544565753 is a prime.

It is not a weakly prime, because it can be changed into another prime (135544567831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67772283900 + 67772283901.

It is an arithmetic number, because the mean of its divisors is an integer number (67772283901).

Almost surely, 2^135544567801 is an apocalyptic number.

It is an amenable number.

135544567801 is a deficient number, since it is larger than the sum of its proper divisors (1).

135544567801 is an equidigital number, since it uses as much as digits as its factorization.

135544567801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 135544567801 in words is "one hundred thirty-five billion, five hundred forty-four million, five hundred sixty-seven thousand, eight hundred one".