116631409 has 4 divisors (see below), whose sum is σ = 116695360. Its totient is φ = 116567460.

The previous prime is 116631401. The next prime is 116631419. The reversal of 116631409 is 904136611.

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 116631409 - 2³ = 116631401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116631401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29157 + ... + 32914.

It is an arithmetic number, because the mean of its divisors is an integer number (29173840).

Almost surely, 2^116631409 is an apocalyptic number.

It is an amenable number.

116631409 is a deficient number, since it is larger than the sum of its proper divisors (63951).

116631409 is an equidigital number, since it uses as much as digits as its factorization.

116631409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63950.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 116631409 is about 10799.6022611946. The cubic root of 116631409 is about 488.5831750332.

The spelling of 116631409 in words is "one hundred sixteen million, six hundred thirty-one thousand, four hundred nine".