117220569 has 4 divisors (see below), whose sum is σ = 156294096. Its totient is φ = 78147044.

The previous prime is 117220567. The next prime is 117220573. The reversal of 117220569 is 965022711.

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 117220569 - 2¹ = 117220567 is a prime.

It is a super-2 number, since 2×117220569² = 27481323593367522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117220567) 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, 19536759 + ... + 19536764.

It is an arithmetic number, because the mean of its divisors is an integer number (39073524).

Almost surely, 2^117220569 is an apocalyptic number.

It is an amenable number.

117220569 is a deficient number, since it is larger than the sum of its proper divisors (39073527).

117220569 is an equidigital number, since it uses as much as digits as its factorization.

117220569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39073526.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 117220569 is about 10826.8448312516. The cubic root of 117220569 is about 489.4044813088.

The spelling of 117220569 in words is "one hundred seventeen million, two hundred twenty thousand, five hundred sixty-nine".