545812459 has 16 divisors (see below), whose sum is σ = 580101984. Its totient is φ = 512870400.

The previous prime is 545812447. The next prime is 545812469. The reversal of 545812459 is 954218545.

545812459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 545812459 - 2¹¹ = 545810411 is a prime.

It is a super-2 number, since 2×545812459² = 595822480799253362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545812469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126579 + ... + 130819.

It is an arithmetic number, because the mean of its divisors is an integer number (36256374).

Almost surely, 2^545812459 is an apocalyptic number.

545812459 is a deficient number, since it is larger than the sum of its proper divisors (34289525).

545812459 is a wasteful number, since it uses less digits than its factorization.

545812459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398.

The product of its digits is 288000, while the sum is 43.

The square root of 545812459 is about 23362.6295395018. The cubic root of 545812459 is about 817.2366125216.

The spelling of 545812459 in words is "five hundred forty-five million, eight hundred twelve thousand, four hundred fifty-nine".