117537538 has 8 divisors (see below), whose sum is σ = 178052220. Its totient is φ = 58186800.

The previous prime is 117537509. The next prime is 117537547. The reversal of 117537538 is 835735711.

It can be written as a sum of positive squares in 2 ways, for example, as 75637809 + 41899729 = 8697^2 + 6473^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 117537538.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 290733 + ... + 291136.

Almost surely, 2^117537538 is an apocalyptic number.

117537538 is a deficient number, since it is larger than the sum of its proper divisors (60514682).

117537538 is a wasteful number, since it uses less digits than its factorization.

117537538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581972.

The product of its digits is 88200, while the sum is 40.

The square root of 117537538 is about 10841.4730548943. The cubic root of 117537538 is about 489.8452072488.

It can be divided in two parts, 11753 and 7538, that added together give a palindrome (19291).

The spelling of 117537538 in words is "one hundred seventeen million, five hundred thirty-seven thousand, five hundred thirty-eight".