115551773 has 4 divisors (see below), whose sum is σ = 117134748. Its totient is φ = 113968800.

The previous prime is 115551767. The next prime is 115551781. The reversal of 115551773 is 377155511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377155511 = 139 ⋅2713349.

It can be written as a sum of positive squares in 2 ways, for example, as 21325924 + 94225849 = 4618^2 + 9707^2 .

It is a cyclic number.

It is not a de Polignac number, because 115551773 - 2⁴ = 115551757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791378 + ... + 791523.

It is an arithmetic number, because the mean of its divisors is an integer number (29283687).

Almost surely, 2^115551773 is an apocalyptic number.

It is an amenable number.

115551773 is a deficient number, since it is larger than the sum of its proper divisors (1582975).

115551773 is an equidigital number, since it uses as much as digits as its factorization.

115551773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582974.

The product of its digits is 18375, while the sum is 35.

The square root of 115551773 is about 10749.5010581887. The cubic root of 115551773 is about 487.0709236179.

The spelling of 115551773 in words is "one hundred fifteen million, five hundred fifty-one thousand, seven hundred seventy-three".