115778353 has 4 divisors (see below), whose sum is σ = 119770740. Its totient is φ = 111785968.

The previous prime is 115778339. The next prime is 115778357. The reversal of 115778353 is 353877511.

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 36336784 + 79441569 = 6028^2 + 8913^2 .

It is a cyclic number.

It is not a de Polignac number, because 115778353 - 2⁵ = 115778321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115778357) 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, 1996150 + ... + 1996207.

It is an arithmetic number, because the mean of its divisors is an integer number (29942685).

Almost surely, 2^115778353 is an apocalyptic number.

It is an amenable number.

115778353 is a deficient number, since it is larger than the sum of its proper divisors (3992387).

115778353 is an equidigital number, since it uses as much as digits as its factorization.

115778353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992386.

The product of its digits is 88200, while the sum is 40.

The square root of 115778353 is about 10760.0349906494. The cubic root of 115778353 is about 487.3890738632.

The spelling of 115778353 in words is "one hundred fifteen million, seven hundred seventy-eight thousand, three hundred fifty-three".