545134405 has 4 divisors (see below), whose sum is σ = 654161292. Its totient is φ = 436107520.

The previous prime is 545134399. The next prime is 545134409. The reversal of 545134405 is 504431545.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326271969 + 218862436 = 18063^2 + 14794^2 .

It is not a de Polignac number, because 545134405 - 2⁹ = 545133893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545134409) 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, 54513436 + ... + 54513445.

It is an arithmetic number, because the mean of its divisors is an integer number (163540323).

Almost surely, 2^545134405 is an apocalyptic number.

It is an amenable number.

545134405 is a deficient number, since it is larger than the sum of its proper divisors (109026887).

545134405 is a wasteful number, since it uses less digits than its factorization.

545134405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109026886.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 545134405 is about 23348.1135212248. The cubic root of 545134405 is about 816.8980590094.

The spelling of 545134405 in words is "five hundred forty-five million, one hundred thirty-four thousand, four hundred five".