115563761 has 2 divisors, whose sum is σ = 115563762. Its totient is φ = 115563760.

The previous prime is 115563737. The next prime is 115563781. The reversal of 115563761 is 167365511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 55965361 = 7720^2 + 7481^2 .

It is a cyclic number.

It is not a de Polignac number, because 115563761 - 2⁶ = 115563697 is a prime.

It is not a weakly prime, because it can be changed into another prime (115563781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57781880 + 57781881.

It is an arithmetic number, because the mean of its divisors is an integer number (57781881).

Almost surely, 2^115563761 is an apocalyptic number.

It is an amenable number.

115563761 is a deficient number, since it is larger than the sum of its proper divisors (1).

115563761 is an equidigital number, since it uses as much as digits as its factorization.

115563761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 115563761 is about 10750.0586510028. The cubic root of 115563761 is about 487.0877668740.

The spelling of 115563761 in words is "one hundred fifteen million, five hundred sixty-three thousand, seven hundred sixty-one".