117353221 has 4 divisors (see below), whose sum is σ = 117523744. Its totient is φ = 117182700.

The previous prime is 117353209. The next prime is 117353231. The reversal of 117353221 is 122353711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117353221 - 2⁹ = 117352709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117353231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84225 + ... + 85606.

It is an arithmetic number, because the mean of its divisors is an integer number (29380936).

Almost surely, 2^117353221 is an apocalyptic number.

It is an amenable number.

117353221 is a deficient number, since it is larger than the sum of its proper divisors (170523).

117353221 is an equidigital number, since it uses as much as digits as its factorization.

117353221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170522.

The product of its digits is 1260, while the sum is 25.

The square root of 117353221 is about 10832.9691682382. The cubic root of 117353221 is about 489.5890223275.

The spelling of 117353221 in words is "one hundred seventeen million, three hundred fifty-three thousand, two hundred twenty-one".