115352381 has 4 divisors (see below), whose sum is σ = 115386012. Its totient is φ = 115318752.

The previous prime is 115352371. The next prime is 115352387. The reversal of 115352381 is 183253511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183253511 = 7 ⋅26179073.

It can be written as a sum of positive squares in 2 ways, for example, as 78943225 + 36409156 = 8885^2 + 6034^2 .

It is a cyclic number.

It is not a de Polignac number, because 115352381 - 2⁶ = 115352317 is a prime.

It is a super-2 number, since 2×115352381² = 26612343604738322, which contains 22 as substring.

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 (115352387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11000 + ... + 18753.

It is an arithmetic number, because the mean of its divisors is an integer number (28846503).

Almost surely, 2^115352381 is an apocalyptic number.

It is an amenable number.

115352381 is a deficient number, since it is larger than the sum of its proper divisors (33631).

115352381 is an equidigital number, since it uses as much as digits as its factorization.

115352381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33630.

The product of its digits is 3600, while the sum is 29.

The square root of 115352381 is about 10740.2225768370. Note that the first 3 decimals coincide. The cubic root of 115352381 is about 486.7906049410.

The spelling of 115352381 in words is "one hundred fifteen million, three hundred fifty-two thousand, three hundred eighty-one".