115252381 has 2 divisors, whose sum is σ = 115252382. Its totient is φ = 115252380.

The previous prime is 115252343. The next prime is 115252387. The reversal of 115252381 is 183252511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113103225 + 2149156 = 10635^2 + 1466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115252381 is a prime.

It is a super-2 number, since 2×115252381² = 26566222652338322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115252387) 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 as a sum of consecutive naturals, namely, 57626190 + 57626191.

It is an arithmetic number, because the mean of its divisors is an integer number (57626191).

Almost surely, 2^115252381 is an apocalyptic number.

It is an amenable number.

115252381 is a deficient number, since it is larger than the sum of its proper divisors (1).

115252381 is an equidigital number, since it uses as much as digits as its factorization.

115252381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 28.

The square root of 115252381 is about 10735.5661704449. The cubic root of 115252381 is about 486.6498965781.

The spelling of 115252381 in words is "one hundred fifteen million, two hundred fifty-two thousand, three hundred eighty-one".