115125091 has 2 divisors, whose sum is σ = 115125092. Its totient is φ = 115125090.

The previous prime is 115125083. The next prime is 115125121. The reversal of 115125091 is 190521511.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (190521511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115125091 - 2³ = 115125083 is a prime.

It is not a weakly prime, because it can be changed into another prime (115125001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57562545 + 57562546.

It is an arithmetic number, because the mean of its divisors is an integer number (57562546).

Almost surely, 2^115125091 is an apocalyptic number.

115125091 is a deficient number, since it is larger than the sum of its proper divisors (1).

115125091 is an equidigital number, since it uses as much as digits as its factorization.

115125091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 25.

The square root of 115125091 is about 10729.6361075295. The cubic root of 115125091 is about 486.4706711137.

The spelling of 115125091 in words is "one hundred fifteen million, one hundred twenty-five thousand, ninety-one".