115203133 has 2 divisors, whose sum is σ = 115203134. Its totient is φ = 115203132.

The previous prime is 115203119. The next prime is 115203139. The reversal of 115203133 is 331302511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58094884 + 57108249 = 7622^2 + 7557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115203133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115203133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115203139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57601566 + 57601567.

It is an arithmetic number, because the mean of its divisors is an integer number (57601567).

Almost surely, 2^115203133 is an apocalyptic number.

It is an amenable number.

115203133 is a deficient number, since it is larger than the sum of its proper divisors (1).

115203133 is an equidigital number, since it uses as much as digits as its factorization.

115203133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 115203133 is about 10733.2722410270. The cubic root of 115203133 is about 486.5805706102.

Adding to 115203133 its reverse (331302511), we get a palindrome (446505644).

The spelling of 115203133 in words is "one hundred fifteen million, two hundred three thousand, one hundred thirty-three".