117291582 has 48 divisors (see below), whose sum is σ = 268882848. Its totient is φ = 36875520.

The previous prime is 117291563. The next prime is 117291589. The reversal of 117291582 is 285192711.

It is a happy number.

117291582 is a `hidden beast` number, since 1 + 1 + 72 + 9 + 1 + 582 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117291589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28282 + ... + 32162.

It is an arithmetic number, because the mean of its divisors is an integer number (5601726).

Almost surely, 2^117291582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117291582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134441424).

117291582 is an abundant number, since it is smaller than the sum of its proper divisors (151591266).

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

117291582 is a wasteful number, since it uses less digits than its factorization.

117291582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985 (or 3982 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 117291582 is about 10830.1238220068. The cubic root of 117291582 is about 489.5032895214.

The spelling of 117291582 in words is "one hundred seventeen million, two hundred ninety-one thousand, five hundred eighty-two".