117444021 has 4 divisors (see below), whose sum is σ = 156592032. Its totient is φ = 78296012.

The previous prime is 117444013. The next prime is 117444053. The reversal of 117444021 is 120444711.

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 117444021 - 2³ = 117444013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117443982 and 117444000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117444001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19574001 + ... + 19574006.

It is an arithmetic number, because the mean of its divisors is an integer number (39148008).

Almost surely, 2^117444021 is an apocalyptic number.

It is an amenable number.

117444021 is a deficient number, since it is larger than the sum of its proper divisors (39148011).

117444021 is an equidigital number, since it uses as much as digits as its factorization.

117444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39148010.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 117444021 is about 10837.1592680001. The cubic root of 117444021 is about 489.7152600863.

Adding to 117444021 its reverse (120444711), we get a palindrome (237888732).

The spelling of 117444021 in words is "one hundred seventeen million, four hundred forty-four thousand, twenty-one".