117571111 has 8 divisors (see below), whose sum is σ = 137226240. Its totient is φ = 98630808.

The previous prime is 117571109. The next prime is 117571123. The reversal of 117571111 is 111175711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117571111 - 2¹ = 117571109 is a prime.

It is a super-2 number, since 2×117571111² = 27645932283548642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117571211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178351 + ... + 179008.

It is an arithmetic number, because the mean of its divisors is an integer number (17153280).

Almost surely, 2^117571111 is an apocalyptic number.

117571111 is a deficient number, since it is larger than the sum of its proper divisors (19655129).

117571111 is an equidigital number, since it uses as much as digits as its factorization.

117571111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357413.

The product of its digits is 245, while the sum is 25.

The square root of 117571111 is about 10843.0213040462. The cubic root of 117571111 is about 489.8918420172.

The spelling of 117571111 in words is "one hundred seventeen million, five hundred seventy-one thousand, one hundred eleven".