545069 has 4 divisors (see below), whose sum is σ = 622944. Its totient is φ = 467196.

The previous prime is 545063. The next prime is 545087. The reversal of 545069 is 960545.

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 545069 - 2⁸ = 544813 is a prime.

It is a super-2 number, since 2×545069² = 594200429522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545063) 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, 38927 + ... + 38940.

It is an arithmetic number, because the mean of its divisors is an integer number (155736).

2⁵⁴⁵⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

545069 is a deficient number, since it is larger than the sum of its proper divisors (77875).

545069 is an equidigital number, since it uses as much as digits as its factorization.

545069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77874.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 545069 is about 738.2878842295. The cubic root of 545069 is about 81.6865387339.

The spelling of 545069 in words is "five hundred forty-five thousand, sixty-nine".