115777001 has 4 divisors (see below), whose sum is σ = 116274132. Its totient is φ = 115279872.

The previous prime is 115776977. The next prime is 115777003. The reversal of 115777001 is 100777511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48930025 + 66846976 = 6995^2 + 8176^2 .

It is a cyclic number.

It is not a de Polignac number, because 115777001 - 2¹⁰ = 115775977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115777003) 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 in 3 ways as a sum of consecutive naturals, for example, 248216 + ... + 248681.

It is an arithmetic number, because the mean of its divisors is an integer number (29068533).

Almost surely, 2^115777001 is an apocalyptic number.

It is an amenable number.

115777001 is a deficient number, since it is larger than the sum of its proper divisors (497131).

115777001 is an equidigital number, since it uses as much as digits as its factorization.

115777001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497130.

The product of its (nonzero) digits is 1715, while the sum is 29.

The square root of 115777001 is about 10759.9721653915. The cubic root of 115777001 is about 487.3871766962.

The spelling of 115777001 in words is "one hundred fifteen million, seven hundred seventy-seven thousand, one".