4120013545 has 8 divisors (see below), whose sum is σ = 4948086024. Its totient is φ = 3293297664.

The previous prime is 4120013533. The next prime is 4120013549. The reversal of 4120013545 is 5453100214.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50083929 + 4069929616 = 7077^2 + 63796^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4120013545 - 2⁹ = 4120013033 is a prime.

It is a super-2 number, since 2×4120013545² = 33949023221966934050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4120013549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332454 + ... + 344623.

It is an arithmetic number, because the mean of its divisors is an integer number (618510753).

Almost surely, 2^4120013545 is an apocalyptic number.

It is an amenable number.

4120013545 is a deficient number, since it is larger than the sum of its proper divisors (828072479).

4120013545 is a wasteful number, since it uses less digits than its factorization.

4120013545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678299.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4120013545 is about 64187.3316550860. The cubic root of 4120013545 is about 1603.1206730894.

Adding to 4120013545 its reverse (5453100214), we get a palindrome (9573113759).

It can be divided in two parts, 41200 and 13545, that added together give a palindrome (54745).

The spelling of 4120013545 in words is "four billion, one hundred twenty million, thirteen thousand, five hundred forty-five".