115780493 has 4 divisors (see below), whose sum is σ = 116034300. Its totient is φ = 115526688.

The previous prime is 115780477. The next prime is 115780513. The reversal of 115780493 is 394087511.

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 91049764 + 24730729 = 9542^2 + 4973^2 .

It is a cyclic number.

It is not a de Polignac number, because 115780493 - 2⁴ = 115780477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115780393) 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, 126218 + ... + 127131.

It is an arithmetic number, because the mean of its divisors is an integer number (29008575).

Almost surely, 2^115780493 is an apocalyptic number.

It is an amenable number.

115780493 is a deficient number, since it is larger than the sum of its proper divisors (253807).

115780493 is an equidigital number, since it uses as much as digits as its factorization.

115780493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253806.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 115780493 is about 10760.1344322457. The cubic root of 115780493 is about 487.3920767451.

The spelling of 115780493 in words is "one hundred fifteen million, seven hundred eighty thousand, four hundred ninety-three".