4013545441 has 4 divisors (see below), whose sum is σ = 4013672212. Its totient is φ = 4013418672.

The previous prime is 4013545433. The next prime is 4013545463. The reversal of 4013545441 is 1445453104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2593763041 + 1419782400 = 50929^2 + 37680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013545441 - 2³ = 4013545433 is a prime.

It is a super-2 number, since 2×4013545441² = 32217094013943768962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4013545411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28651 + ... + 94063.

It is an arithmetic number, because the mean of its divisors is an integer number (1003418053).

Almost surely, 2^4013545441 is an apocalyptic number.

It is an amenable number.

4013545441 is a deficient number, since it is larger than the sum of its proper divisors (126771).

4013545441 is an equidigital number, since it uses as much as digits as its factorization.

4013545441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126770.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 4013545441 is about 63352.5488121828. The cubic root of 4013545441 is about 1589.1908704370.

Adding to 4013545441 its reverse (1445453104), we get a palindrome (5458998545).

The spelling of 4013545441 in words is "four billion, thirteen million, five hundred forty-five thousand, four hundred forty-one".