117649751 has 8 divisors (see below), whose sum is σ = 121086240. Its totient is φ = 114226848.

The previous prime is 117649747. The next prime is 117649757. The reversal of 117649751 is 157946711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117649751 - 2² = 117649747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117649699 and 117649708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117649757) 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 7 ways as a sum of consecutive naturals, for example, 15710 + ... + 21956.

It is an arithmetic number, because the mean of its divisors is an integer number (15135780).

Almost surely, 2^117649751 is an apocalyptic number.

117649751 is a deficient number, since it is larger than the sum of its proper divisors (3436489).

117649751 is an equidigital number, since it uses as much as digits as its factorization.

117649751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793.

The product of its digits is 52920, while the sum is 41.

The square root of 117649751 is about 10846.6469934261. The cubic root of 117649751 is about 490.0010426189.

The spelling of 117649751 in words is "one hundred seventeen million, six hundred forty-nine thousand, seven hundred fifty-one".