135451205 has 4 divisors (see below), whose sum is σ = 162541452. Its totient is φ = 108360960.

The previous prime is 135451181. The next prime is 135451213. The reversal of 135451205 is 502154531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502154531 = 107 ⋅4693033.

It can be written as a sum of positive squares in 2 ways, for example, as 21687649 + 113763556 = 4657^2 + 10666^2 .

It is not a de Polignac number, because 135451205 - 2¹⁶ = 135385669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13545116 + ... + 13545125.

It is an arithmetic number, because the mean of its divisors is an integer number (40635363).

Almost surely, 2^135451205 is an apocalyptic number.

It is an amenable number.

135451205 is a deficient number, since it is larger than the sum of its proper divisors (27090247).

135451205 is an equidigital number, since it uses as much as digits as its factorization.

135451205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27090246.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 135451205 is about 11638.3506133816. The cubic root of 135451205 is about 513.5636667560.

The spelling of 135451205 in words is "one hundred thirty-five million, four hundred fifty-one thousand, two hundred five".