117907542 has 32 divisors (see below), whose sum is σ = 263023200. Its totient is φ = 39151584.

The previous prime is 117907541. The next prime is 117907549. The reversal of 117907542 is 245709711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 117907497 and 117907506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117907541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10468 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (8219475).

Almost surely, 2^117907542 is an apocalyptic number.

117907542 is an abundant number, since it is smaller than the sum of its proper divisors (145115658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117907542 is a wasteful number, since it uses less digits than its factorization.

117907542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397 (or 8391 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 117907542 is about 10858.5239328373. The cubic root of 117907542 is about 490.3586739453.

The spelling of 117907542 in words is "one hundred seventeen million, nine hundred seven thousand, five hundred forty-two".