117136397 has 16 divisors (see below), whose sum is σ = 135603072. Its totient is φ = 99113280.

The previous prime is 117136379. The next prime is 117136403. The reversal of 117136397 is 793631711.

It is a happy number.

It is not a de Polignac number, because 117136397 - 2¹⁰ = 117135373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117136397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117136367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238322 + ... + 238812.

It is an arithmetic number, because the mean of its divisors is an integer number (8475192).

Almost surely, 2^117136397 is an apocalyptic number.

It is an amenable number.

117136397 is a deficient number, since it is larger than the sum of its proper divisors (18466675).

117136397 is a wasteful number, since it uses less digits than its factorization.

117136397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868.

The product of its digits is 23814, while the sum is 38.

The square root of 117136397 is about 10822.9569434605. The cubic root of 117136397 is about 489.2873118327.

The spelling of 117136397 in words is "one hundred seventeen million, one hundred thirty-six thousand, three hundred ninety-seven".