545724229 has 4 divisors (see below), whose sum is σ = 547211584. Its totient is φ = 544236876.

The previous prime is 545724209. The next prime is 545724241. The reversal of 545724229 is 922427545.

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 545724229 - 2¹¹ = 545722181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545724191 and 545724200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545724209) 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, 743127 + ... + 743860.

It is an arithmetic number, because the mean of its divisors is an integer number (136802896).

Almost surely, 2^545724229 is an apocalyptic number.

It is an amenable number.

545724229 is a deficient number, since it is larger than the sum of its proper divisors (1487355).

545724229 is a wasteful number, since it uses less digits than its factorization.

545724229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487354.

The product of its digits is 201600, while the sum is 40.

The square root of 545724229 is about 23360.7411911523. The cubic root of 545724229 is about 817.1925750073.

The spelling of 545724229 in words is "five hundred forty-five million, seven hundred twenty-four thousand, two hundred twenty-nine".