115771049 has 2 divisors, whose sum is σ = 115771050. Its totient is φ = 115771048.

The previous prime is 115771043. The next prime is 115771067. The reversal of 115771049 is 940177511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86955625 + 28815424 = 9325^2 + 5368^2 .

It is a cyclic number.

It is not a de Polignac number, because 115771049 - 2²⁰ = 114722473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (115771043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57885524 + 57885525.

It is an arithmetic number, because the mean of its divisors is an integer number (57885525).

Almost surely, 2^115771049 is an apocalyptic number.

It is an amenable number.

115771049 is a deficient number, since it is larger than the sum of its proper divisors (1).

115771049 is an equidigital number, since it uses as much as digits as its factorization.

115771049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 115771049 is about 10759.6955811956. The cubic root of 115771049 is about 487.3788244957.

The spelling of 115771049 in words is "one hundred fifteen million, seven hundred seventy-one thousand, forty-nine".