115257871 has 4 divisors (see below), whose sum is σ = 115364992. Its totient is φ = 115150752.

The previous prime is 115257869. The next prime is 115257887. The reversal of 115257871 is 178752511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115257871 - 2¹ = 115257869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115257871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115252871) 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, 51930 + ... + 54103.

It is an arithmetic number, because the mean of its divisors is an integer number (28841248).

Almost surely, 2^115257871 is an apocalyptic number.

115257871 is a deficient number, since it is larger than the sum of its proper divisors (107121).

115257871 is a wasteful number, since it uses less digits than its factorization.

115257871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107120.

The product of its digits is 19600, while the sum is 37.

The square root of 115257871 is about 10735.8218595504. The cubic root of 115257871 is about 486.6576235783.

The spelling of 115257871 in words is "one hundred fifteen million, two hundred fifty-seven thousand, eight hundred seventy-one".