135276104401 has 9 divisors (see below), whose sum is σ = 136039135899. Its totient is φ = 134517335064.

The previous prime is 135276104323. The next prime is 135276104423. The reversal of 135276104401 is 104401672531.

The square root of 135276104401 is 367799.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 132543324225 + 2732780176 = 364065^2 + 52276^2 .

It is not a de Polignac number, because 135276104401 - 2¹⁵ = 135276071633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135276104441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 72455470 + ... + 72457336.

Almost surely, 2^135276104401 is an apocalyptic number.

135276104401 is the 367799-th square number.

135276104401 is the 183900-th centered octagonal number.

It is an amenable number.

135276104401 is a deficient number, since it is larger than the sum of its proper divisors (763031498).

135276104401 is an frugal number, since it uses more digits than its factorization.

135276104401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 135276104401 its reverse (104401672531), we get a palindrome (239677776932).

The spelling of 135276104401 in words is "one hundred thirty-five billion, two hundred seventy-six million, one hundred four thousand, four hundred one".