117554997 has 16 divisors (see below), whose sum is σ = 179361792. Its totient is φ = 67087920.

The previous prime is 117554989. The next prime is 117555023. The reversal of 117554997 is 799455711.

It is not a de Polignac number, because 117554997 - 2³ = 117554989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117554597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15472 + ... + 21782.

It is an arithmetic number, because the mean of its divisors is an integer number (11210112).

Almost surely, 2^117554997 is an apocalyptic number.

It is an amenable number.

117554997 is a deficient number, since it is larger than the sum of its proper divisors (61806795).

117554997 is an equidigital number, since it uses as much as digits as its factorization.

117554997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208.

The product of its digits is 396900, while the sum is 48.

The square root of 117554997 is about 10842.2782200052. The cubic root of 117554997 is about 489.8694598811.

The spelling of 117554997 in words is "one hundred seventeen million, five hundred fifty-four thousand, nine hundred ninety-seven".