117491445 has 32 divisors (see below), whose sum is σ = 213978240. Its totient is φ = 61130880.

The previous prime is 117491431. The next prime is 117491477. The reversal of 117491445 is 544194711.

It is not a de Polignac number, because 117491445 - 2⁸ = 117491189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5079 + ... + 16148.

It is an arithmetic number, because the mean of its divisors is an integer number (6686820).

Almost surely, 2^117491445 is an apocalyptic number.

117491445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117491445 is a deficient number, since it is larger than the sum of its proper divisors (96486795).

117491445 is a wasteful number, since it uses less digits than its factorization.

117491445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21282 (or 21276 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 117491445 is about 10839.3470744321. The cubic root of 117491445 is about 489.7811670350.

The spelling of 117491445 in words is "one hundred seventeen million, four hundred ninety-one thousand, four hundred forty-five".