545120001 has 12 divisors (see below), whose sum is σ = 808677012. Its totient is φ = 353591136.

The previous prime is 545119979. The next prime is 545120003. The reversal of 545120001 is 100021545.

545120001 is a `hidden beast` number, since 545 + 120 + 0 + 0 + 1 = 666.

545120001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 525326400 + 19793601 = 22920^2 + 4449^2 .

It is not a de Polignac number, because 545120001 - 2¹⁷ = 544988929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545120003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818166 + ... + 818831.

It is an arithmetic number, because the mean of its divisors is an integer number (67389751).

Almost surely, 2^545120001 is an apocalyptic number.

It is an amenable number.

545120001 is a deficient number, since it is larger than the sum of its proper divisors (263557011).

545120001 is a wasteful number, since it uses less digits than its factorization.

545120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637040 (or 1637037 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 545120001 is about 23347.8050574353. The cubic root of 545120001 is about 816.8908640234.

Adding to 545120001 its reverse (100021545), we get a palindrome (645141546).

It can be divided in two parts, 5451 and 20001, that added together give a palindrome (25452).

The spelling of 545120001 in words is "five hundred forty-five million, one hundred twenty thousand, one".