115807 has 2 divisors, whose sum is σ = 115808. Its totient is φ = 115806.
The previous prime is 115793. The next prime is 115811. The reversal of 115807 is 708511.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 115807 - 27 = 115679 is a prime.
It is a super-2 number, since 2×1158072 = 26822522498, which contains 22 as substring.
It is a Chen prime.
115807 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (115837) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57903 + 57904.
It is an arithmetic number, because the mean of its divisors is an integer number (57904).
2115807 is an apocalyptic number.
115807 is a deficient number, since it is larger than the sum of its proper divisors (1).
115807 is an equidigital number, since it uses as much as digits as its factorization.
115807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 280, while the sum is 22.
The square root of 115807 is about 340.3042756123. The cubic root of 115807 is about 48.7429268721.
Subtracting 115807 from its reverse (708511), we obtain a cube (592704 = 843).
The spelling of 115807 in words is "one hundred fifteen thousand, eight hundred seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •