115188149 has 2 divisors, whose sum is σ = 115188150. Its totient is φ = 115188148.

The previous prime is 115188121. The next prime is 115188173. The reversal of 115188149 is 941881511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59013124 + 56175025 = 7682^2 + 7495^2 .

It is a cyclic number.

It is not a de Polignac number, because 115188149 - 2¹² = 115184053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115148149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57594074 + 57594075.

It is an arithmetic number, because the mean of its divisors is an integer number (57594075).

Almost surely, 2^115188149 is an apocalyptic number.

It is an amenable number.

115188149 is a deficient number, since it is larger than the sum of its proper divisors (1).

115188149 is an equidigital number, since it uses as much as digits as its factorization.

115188149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 38.

The square root of 115188149 is about 10732.5742019331. The cubic root of 115188149 is about 486.5594738478.

The spelling of 115188149 in words is "one hundred fifteen million, one hundred eighty-eight thousand, one hundred forty-nine".