117029385 has 36 divisors (see below), whose sum is σ = 222978756. Its totient is φ = 56738880.

The previous prime is 117029383. The next prime is 117029401. The reversal of 117029385 is 583920711.

It can be written as a sum of positive squares in 2 ways, for example, as 24176889 + 92852496 = 4917^2 + 9636^2 .

It is not a de Polignac number, because 117029385 - 2¹ = 117029383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117029383) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5302 + ... + 16191.

Almost surely, 2^117029385 is an apocalyptic number.

117029385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117029385 is a deficient number, since it is larger than the sum of its proper divisors (105949371).

117029385 is a wasteful number, since it uses less digits than its factorization.

117029385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21526 (or 21512 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 117029385 is about 10818.0120632212. The cubic root of 117029385 is about 489.1382674482.

The spelling of 117029385 in words is "one hundred seventeen million, twenty-nine thousand, three hundred eighty-five".