115540253 has 2 divisors, whose sum is σ = 115540254. Its totient is φ = 115540252.

The previous prime is 115540219. The next prime is 115540259. The reversal of 115540253 is 352045511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107599129 + 7941124 = 10373^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 115540253 - 2¹⁸ = 115278109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115540259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57770126 + 57770127.

It is an arithmetic number, because the mean of its divisors is an integer number (57770127).

Almost surely, 2^115540253 is an apocalyptic number.

It is an amenable number.

115540253 is a deficient number, since it is larger than the sum of its proper divisors (1).

115540253 is an equidigital number, since it uses as much as digits as its factorization.

115540253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 115540253 is about 10748.9652060094. The cubic root of 115540253 is about 487.0547368086.

Adding to 115540253 its reverse (352045511), we get a palindrome (467585764).

The spelling of 115540253 in words is "one hundred fifteen million, five hundred forty thousand, two hundred fifty-three".