4131500261 has 16 divisors (see below), whose sum is σ = 4813799424. Its totient is φ = 3472699824.

The previous prime is 4131500257. The next prime is 4131500273. The reversal of 4131500261 is 1620051314.

4131500261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4131500261 - 2² = 4131500257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131500221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84836 + ... + 124338.

It is an arithmetic number, because the mean of its divisors is an integer number (300862464).

Almost surely, 2^4131500261 is an apocalyptic number.

It is an amenable number.

4131500261 is a deficient number, since it is larger than the sum of its proper divisors (682299163).

4131500261 is a wasteful number, since it uses less digits than its factorization.

4131500261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39800.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4131500261 is about 64276.7474363786. The cubic root of 4131500261 is about 1604.6091394639.

Adding to 4131500261 its reverse (1620051314), we get a palindrome (5751551575).

The spelling of 4131500261 in words is "four billion, one hundred thirty-one million, five hundred thousand, two hundred sixty-one".