117720147 has 8 divisors (see below), whose sum is σ = 157100944. Its totient is φ = 78409728.

The previous prime is 117720133. The next prime is 117720149. The reversal of 117720147 is 741027711.

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

It is not a de Polignac number, because 117720147 - 2⁴ = 117720131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117720149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13558 + ... + 20475.

It is an arithmetic number, because the mean of its divisors is an integer number (19637618).

Almost surely, 2^117720147 is an apocalyptic number.

117720147 is a deficient number, since it is larger than the sum of its proper divisors (39380797).

117720147 is a wasteful number, since it uses less digits than its factorization.

117720147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35189.

The product of its (nonzero) digits is 2744, while the sum is 30.

The square root of 117720147 is about 10849.8915662784. The cubic root of 117720147 is about 490.0987542177.

Adding to 117720147 its reverse (741027711), we get a palindrome (858747858).

The spelling of 117720147 in words is "one hundred seventeen million, seven hundred twenty thousand, one hundred forty-seven".