545581229 has 4 divisors (see below), whose sum is σ = 569302176. Its totient is φ = 521860284.

The previous prime is 545581213. The next prime is 545581237. The reversal of 545581229 is 922185545.

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.

It is a cyclic number.

It is not a de Polignac number, because 545581229 - 2⁴ = 545581213 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 (545581249) 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, 11860439 + ... + 11860484.

It is an arithmetic number, because the mean of its divisors is an integer number (142325544).

Almost surely, 2^545581229 is an apocalyptic number.

It is an amenable number.

545581229 is a deficient number, since it is larger than the sum of its proper divisors (23720947).

545581229 is a wasteful number, since it uses less digits than its factorization.

545581229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23720946.

The product of its digits is 144000, while the sum is 41.

The square root of 545581229 is about 23357.6803000640. The cubic root of 545581229 is about 817.1211905115.

The spelling of 545581229 in words is "five hundred forty-five million, five hundred eighty-one thousand, two hundred twenty-nine".