135456450401 has 4 divisors (see below), whose sum is σ = 141345861312. Its totient is φ = 129567039492.

The previous prime is 135456450391. The next prime is 135456450433. The reversal of 135456450401 is 104054654531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104054654531 = 57751 ⋅1801781.

It is a cyclic number.

It is not a de Polignac number, because 135456450401 - 2²² = 135452256097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135456450491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944705421 + ... + 2944705466.

It is an arithmetic number, because the mean of its divisors is an integer number (35336465328).

Almost surely, 2^135456450401 is an apocalyptic number.

It is an amenable number.

135456450401 is a deficient number, since it is larger than the sum of its proper divisors (5889410911).

135456450401 is an equidigital number, since it uses as much as digits as its factorization.

135456450401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889410910.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 135456450401 in words is "one hundred thirty-five billion, four hundred fifty-six million, four hundred fifty thousand, four hundred one".