117591045 has 48 divisors (see below), whose sum is σ = 222305472. Its totient is φ = 52615680.

The previous prime is 117591043. The next prime is 117591049. The reversal of 117591045 is 540195711.

It is not a de Polignac number, because 117591045 - 2¹ = 117591043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117590997 and 117591015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117591043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25777 + ... + 29993.

It is an arithmetic number, because the mean of its divisors is an integer number (4631364).

Almost surely, 2^117591045 is an apocalyptic number.

117591045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117591045 is a deficient number, since it is larger than the sum of its proper divisors (104714427).

117591045 is a wasteful number, since it uses less digits than its factorization.

117591045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 117591045 is about 10843.9404738315. The cubic root of 117591045 is about 489.9195272539.

The spelling of 117591045 in words is "one hundred seventeen million, five hundred ninety-one thousand, forty-five".