117751554 has 48 divisors (see below), whose sum is σ = 273611520. Its totient is φ = 36466560.

The previous prime is 117751511. The next prime is 117751561. The reversal of 117751554 is 455157711.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21739 + ... + 26609.

It is an arithmetic number, because the mean of its divisors is an integer number (5700240).

Almost surely, 2^117751554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117751554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136805760).

117751554 is an abundant number, since it is smaller than the sum of its proper divisors (155859966).

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

117751554 is a wasteful number, since it uses less digits than its factorization.

117751554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975 (or 4972 counting only the distinct ones).

The product of its digits is 24500, while the sum is 36.

The square root of 117751554 is about 10851.3388114094. The cubic root of 117751554 is about 490.1423354378.

The spelling of 117751554 in words is "one hundred seventeen million, seven hundred fifty-one thousand, five hundred fifty-four".