117853138 has 8 divisors (see below), whose sum is σ = 190378188. Its totient is φ = 54393744.

The previous prime is 117853123. The next prime is 117853199. The reversal of 117853138 is 831358711.

It can be written as a sum of positive squares in 2 ways, for example, as 116273089 + 1580049 = 10783^2 + 1257^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 117853097 and 117853106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266381 + ... + 2266432.

Almost surely, 2^117853138 is an apocalyptic number.

117853138 is a deficient number, since it is larger than the sum of its proper divisors (72525050).

117853138 is a wasteful number, since it uses less digits than its factorization.

117853138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532828.

The product of its digits is 20160, while the sum is 37.

The square root of 117853138 is about 10856.0185150911. The cubic root of 117853138 is about 490.2832431543.

The spelling of 117853138 in words is "one hundred seventeen million, eight hundred fifty-three thousand, one hundred thirty-eight".