117138742 has 8 divisors (see below), whose sum is σ = 200809296. Its totient is φ = 50202312.

The previous prime is 117138737. The next prime is 117138787. The reversal of 117138742 is 247831711.

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 = 117138698 and 117138707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4183513 + ... + 4183540.

It is an arithmetic number, because the mean of its divisors is an integer number (25101162).

Almost surely, 2^117138742 is an apocalyptic number.

117138742 is a deficient number, since it is larger than the sum of its proper divisors (83670554).

117138742 is an equidigital number, since it uses as much as digits as its factorization.

117138742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367062.

The product of its digits is 9408, while the sum is 34.

The square root of 117138742 is about 10823.0652774526. The cubic root of 117138742 is about 489.2905768898.

The spelling of 117138742 in words is "one hundred seventeen million, one hundred thirty-eight thousand, seven hundred forty-two".