117537128 has 32 divisors (see below), whose sum is σ = 223236000. Its totient is φ = 58013760.

The previous prime is 117537127. The next prime is 117537139. The reversal of 117537128 is 821735711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (117537127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301958 + ... + 302346.

It is an arithmetic number, because the mean of its divisors is an integer number (6976125).

Almost surely, 2^117537128 is an apocalyptic number.

It is an amenable number.

117537128 is a deficient number, since it is larger than the sum of its proper divisors (105698872).

117537128 is a wasteful number, since it uses less digits than its factorization.

117537128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 781 counting only the distinct ones).

The product of its digits is 11760, while the sum is 35.

The square root of 117537128 is about 10841.4541460083. The cubic root of 117537128 is about 489.8446376811.

It can be divided in two parts, 11753 and 7128, that added together give a palindrome (18881).

The spelling of 117537128 in words is "one hundred seventeen million, five hundred thirty-seven thousand, one hundred twenty-eight".