115405541 has 2 divisors, whose sum is σ = 115405542. Its totient is φ = 115405540.

The previous prime is 115405457. The next prime is 115405547. The reversal of 115405541 is 145504511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 11874916 = 10175^2 + 3446^2 .

It is an emirp because it is prime and its reverse (145504511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115405541 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115405541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115405547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57702770 + 57702771.

It is an arithmetic number, because the mean of its divisors is an integer number (57702771).

Almost surely, 2^115405541 is an apocalyptic number.

It is an amenable number.

115405541 is a deficient number, since it is larger than the sum of its proper divisors (1).

115405541 is an equidigital number, since it uses as much as digits as its factorization.

115405541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 115405541 is about 10742.6971008216. The cubic root of 115405541 is about 486.8653724031.

The spelling of 115405541 in words is "one hundred fifteen million, four hundred five thousand, five hundred forty-one".