4581138127 has 4 divisors (see below), whose sum is σ = 4822250680. Its totient is φ = 4340025576.

The previous prime is 4581138109. The next prime is 4581138161. The reversal of 4581138127 is 7218311854.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4581138127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4581138127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581138167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120556248 + ... + 120556285.

It is an arithmetic number, because the mean of its divisors is an integer number (1205562670).

Almost surely, 2^4581138127 is an apocalyptic number.

4581138127 is a deficient number, since it is larger than the sum of its proper divisors (241112553).

4581138127 is a wasteful number, since it uses less digits than its factorization.

4581138127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241112552.

The product of its digits is 53760, while the sum is 40.

The square root of 4581138127 is about 67684.1054236517. The cubic root of 4581138127 is about 1660.8272509798.

It can be divided in two parts, 45811 and 38127, that added together give a palindrome (83938).

The spelling of 4581138127 in words is "four billion, five hundred eighty-one million, one hundred thirty-eight thousand, one hundred twenty-seven".