115405457 has 2 divisors, whose sum is σ = 115405458. Its totient is φ = 115405456.

The previous prime is 115405453. The next prime is 115405541. The reversal of 115405457 is 754504511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101929216 + 13476241 = 10096^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 115405457 - 2² = 115405453 is a prime.

It is not a weakly prime, because it can be changed into another prime (115405453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57702728 + 57702729.

It is an arithmetic number, because the mean of its divisors is an integer number (57702729).

Almost surely, 2^115405457 is an apocalyptic number.

It is an amenable number.

115405457 is a deficient number, since it is larger than the sum of its proper divisors (1).

115405457 is an equidigital number, since it uses as much as digits as its factorization.

115405457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 115405457 is about 10742.6931911881. The cubic root of 115405457 is about 486.8652542785.

Adding to 115405457 its reverse (754504511), we get a palindrome (869909968).

The spelling of 115405457 in words is "one hundred fifteen million, four hundred five thousand, four hundred fifty-seven".