135404434201 has 2 divisors, whose sum is σ = 135404434202. Its totient is φ = 135404434200.

The previous prime is 135404434159. The next prime is 135404434213. The reversal of 135404434201 is 102434404531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135349674201 + 54760000 = 367899^2 + 7400^2 .

It is a cyclic number.

It is not a de Polignac number, because 135404434201 - 2¹³ = 135404426009 is a prime.

It is not a weakly prime, because it can be changed into another prime (135404434601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67702217100 + 67702217101.

It is an arithmetic number, because the mean of its divisors is an integer number (67702217101).

Almost surely, 2^135404434201 is an apocalyptic number.

It is an amenable number.

135404434201 is a deficient number, since it is larger than the sum of its proper divisors (1).

135404434201 is an equidigital number, since it uses as much as digits as its factorization.

135404434201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 135404434201 its reverse (102434404531), we get a palindrome (237838838732).

The spelling of 135404434201 in words is "one hundred thirty-five billion, four hundred four million, four hundred thirty-four thousand, two hundred one".