115205801 has 2 divisors, whose sum is σ = 115205802. Its totient is φ = 115205800.

The previous prime is 115205773. The next prime is 115205813. The reversal of 115205801 is 108502511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89965225 + 25240576 = 9485^2 + 5024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115205801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115205401) 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 as a sum of consecutive naturals, namely, 57602900 + 57602901.

It is an arithmetic number, because the mean of its divisors is an integer number (57602901).

Almost surely, 2^115205801 is an apocalyptic number.

It is an amenable number.

115205801 is a deficient number, since it is larger than the sum of its proper divisors (1).

115205801 is an equidigital number, since it uses as much as digits as its factorization.

115205801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 115205801 is about 10733.3965267291. The cubic root of 115205801 is about 486.5843268360.

The spelling of 115205801 in words is "one hundred fifteen million, two hundred five thousand, eight hundred one".