114987809 has 4 divisors (see below), whose sum is σ = 115082004. Its totient is φ = 114893616.

The previous prime is 114987767. The next prime is 114987811. The reversal of 114987809 is 908789411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59336209 + 55651600 = 7703^2 + 7460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-114987809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (114987109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45242 + ... + 47715.

It is an arithmetic number, because the mean of its divisors is an integer number (28770501).

Almost surely, 2^114987809 is an apocalyptic number.

It is an amenable number.

114987809 is a deficient number, since it is larger than the sum of its proper divisors (94195).

114987809 is an equidigital number, since it uses as much as digits as its factorization.

114987809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94194.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 114987809 is about 10723.2368713929. The cubic root of 114987809 is about 486.2772286900.

The spelling of 114987809 in words is "one hundred fourteen million, nine hundred eighty-seven thousand, eight hundred nine".