4120400545 has 8 divisors (see below), whose sum is σ = 4993436520. Its totient is φ = 3263683200.

The previous prime is 4120400503. The next prime is 4120400563. The reversal of 4120400545 is 5450040214.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2759085729 + 1361314816 = 52527^2 + 36896^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4120400545 - 2⁹ = 4120400033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4079100 + ... + 4080109.

It is an arithmetic number, because the mean of its divisors is an integer number (624179565).

Almost surely, 2^4120400545 is an apocalyptic number.

It is an amenable number.

4120400545 is a deficient number, since it is larger than the sum of its proper divisors (873035975).

4120400545 is a wasteful number, since it uses less digits than its factorization.

4120400545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159315.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 4120400545 is about 64190.3461978513. The cubic root of 4120400545 is about 1603.1708661506.

Adding to 4120400545 its reverse (5450040214), we get a palindrome (9570440759).

The spelling of 4120400545 in words is "four billion, one hundred twenty million, four hundred thousand, five hundred forty-five".