545867145 has 24 divisors (see below), whose sum is σ = 978798600. Its totient is φ = 281089536.

The previous prime is 545867141. The next prime is 545867159. The reversal of 545867145 is 541768545.

545867145 is a `hidden beast` number, since 54 + 586 + 7 + 14 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 41370624 + 504496521 = 6432^2 + 22461^2 .

It is not a de Polignac number, because 545867145 - 2² = 545867141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 545867145.

It is not an unprimeable number, because it can be changed into a prime (545867141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207840 + ... + 210449.

It is an arithmetic number, because the mean of its divisors is an integer number (40783275).

Almost surely, 2^545867145 is an apocalyptic number.

It is an amenable number.

545867145 is a deficient number, since it is larger than the sum of its proper divisors (432931455).

545867145 is a wasteful number, since it uses less digits than its factorization.

545867145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418329 (or 418326 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 545867145 is about 23363.7998835806. The cubic root of 545867145 is about 817.2639051128.

The spelling of 545867145 in words is "five hundred forty-five million, eight hundred sixty-seven thousand, one hundred forty-five".