115459861 has 4 divisors (see below), whose sum is σ = 125956224. Its totient is φ = 104963500.

The previous prime is 115459853. The next prime is 115459879. The reversal of 115459861 is 168954511.

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.

It is a cyclic number.

It is not a de Polignac number, because 115459861 - 2³ = 115459853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115459831) 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, 5248165 + ... + 5248186.

It is an arithmetic number, because the mean of its divisors is an integer number (31489056).

Almost surely, 2^115459861 is an apocalyptic number.

115459861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115459861 is a deficient number, since it is larger than the sum of its proper divisors (10496363).

115459861 is a wasteful number, since it uses less digits than its factorization.

115459861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496362.

The product of its digits is 43200, while the sum is 40.

The square root of 115459861 is about 10745.2250325435. The cubic root of 115459861 is about 486.9417476462.

The spelling of 115459861 in words is "one hundred fifteen million, four hundred fifty-nine thousand, eight hundred sixty-one".