115133237 has 2 divisors, whose sum is σ = 115133238. Its totient is φ = 115133236.

The previous prime is 115133209. The next prime is 115133251. The reversal of 115133237 is 732331511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 43375396 = 8471^2 + 6586^2 .

It is an emirp because it is prime and its reverse (732331511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115133237 - 2²⁴ = 98356021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115133267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57566618 + 57566619.

It is an arithmetic number, because the mean of its divisors is an integer number (57566619).

Almost surely, 2^115133237 is an apocalyptic number.

It is an amenable number.

115133237 is a deficient number, since it is larger than the sum of its proper divisors (1).

115133237 is an equidigital number, since it uses as much as digits as its factorization.

115133237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 26.

The square root of 115133237 is about 10730.0157036232. The cubic root of 115133237 is about 486.4821447105.

Adding to 115133237 its reverse (732331511), we get a palindrome (847464748).

The spelling of 115133237 in words is "one hundred fifteen million, one hundred thirty-three thousand, two hundred thirty-seven".