117742689 has 6 divisors (see below), whose sum is σ = 170072786. Its totient is φ = 78495120.

The previous prime is 117742687. The next prime is 117742711. The reversal of 117742689 is 986247711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101606400 + 16136289 = 10080^2 + 4017^2 .

It is not a de Polignac number, because 117742689 - 2¹ = 117742687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117742687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6541252 + ... + 6541269.

Almost surely, 2^117742689 is an apocalyptic number.

It is an amenable number.

117742689 is a deficient number, since it is larger than the sum of its proper divisors (52330097).

117742689 is a wasteful number, since it uses less digits than its factorization.

117742689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13082527 (or 13082524 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 117742689 is about 10850.9303287783. The cubic root of 117742689 is about 490.1300349041.

The spelling of 117742689 in words is "one hundred seventeen million, seven hundred forty-two thousand, six hundred eighty-nine".