115108261 has 4 divisors (see below), whose sum is σ = 120112992. Its totient is φ = 110103532.

The previous prime is 115108247. The next prime is 115108297. The reversal of 115108261 is 162801511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162801511 = 983 ⋅165617.

It is a cyclic number.

It is not a de Polignac number, because 115108261 - 2²³ = 106719653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115108661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502331 + ... + 2502376.

It is an arithmetic number, because the mean of its divisors is an integer number (30028248).

Almost surely, 2^115108261 is an apocalyptic number.

It is an amenable number.

115108261 is a deficient number, since it is larger than the sum of its proper divisors (5004731).

115108261 is an equidigital number, since it uses as much as digits as its factorization.

115108261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004730.

The product of its (nonzero) digits is 480, while the sum is 25.

The square root of 115108261 is about 10728.8518024997. The cubic root of 115108261 is about 486.4469644357.

Adding to 115108261 its reverse (162801511), we get a palindrome (277909772).

The spelling of 115108261 in words is "one hundred fifteen million, one hundred eight thousand, two hundred sixty-one".