5261816141 has 4 divisors (see below), whose sum is σ = 5348075484. Its totient is φ = 5175556800.

The previous prime is 5261816117. The next prime is 5261816143. The reversal of 5261816141 is 1416181625.

5261816141 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 584624041 + 4677192100 = 24179^2 + 68390^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261816141 - 2²⁶ = 5194707277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261816143) 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, 43129580 + ... + 43129701.

It is an arithmetic number, because the mean of its divisors is an integer number (1337018871).

Almost surely, 2^5261816141 is an apocalyptic number.

It is an amenable number.

5261816141 is a deficient number, since it is larger than the sum of its proper divisors (86259343).

5261816141 is an equidigital number, since it uses as much as digits as its factorization.

5261816141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86259342.

The product of its digits is 11520, while the sum is 35.

The square root of 5261816141 is about 72538.3770220978. The cubic root of 5261816141 is about 1739.3162572057.

Adding to 5261816141 its reverse (1416181625), we get a palindrome (6677997766).

The spelling of 5261816141 in words is "five billion, two hundred sixty-one million, eight hundred sixteen thousand, one hundred forty-one".