117105641 has 4 divisors (see below), whose sum is σ = 119829072. Its totient is φ = 114382212.

The previous prime is 117105617. The next prime is 117105643. The reversal of 117105641 is 146501711.

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 117105641 - 2¹⁸ = 116843497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117105641.

It is not an unprimeable number, because it can be changed into a prime (117105643) 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, 1361651 + ... + 1361736.

It is an arithmetic number, because the mean of its divisors is an integer number (29957268).

Almost surely, 2^117105641 is an apocalyptic number.

It is an amenable number.

117105641 is a deficient number, since it is larger than the sum of its proper divisors (2723431).

117105641 is an equidigital number, since it uses as much as digits as its factorization.

117105641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723430.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 117105641 is about 10821.5359815509. The cubic root of 117105641 is about 489.2444847291.

The spelling of 117105641 in words is "one hundred seventeen million, one hundred five thousand, six hundred forty-one".