117705137 has 8 divisors (see below), whose sum is σ = 131537952. Its totient is φ = 104394400.

The previous prime is 117705121. The next prime is 117705139. The reversal of 117705137 is 731507711.

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

It is not a de Polignac number, because 117705137 - 2⁴ = 117705121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117705139) 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, 130043 + ... + 130944.

It is an arithmetic number, because the mean of its divisors is an integer number (16442244).

Almost surely, 2^117705137 is an apocalyptic number.

It is an amenable number.

117705137 is a deficient number, since it is larger than the sum of its proper divisors (13832815).

117705137 is a wasteful number, since it uses less digits than its factorization.

117705137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261039.

The product of its (nonzero) digits is 5145, while the sum is 32.

The square root of 117705137 is about 10849.1998322457. The cubic root of 117705137 is about 490.0779231899.

The spelling of 117705137 in words is "one hundred seventeen million, seven hundred five thousand, one hundred thirty-seven".