117622144 has 32 divisors (see below), whose sum is σ = 242413200. Its totient is φ = 56781312.

The previous prime is 117622139. The next prime is 117622147. The reversal of 117622144 is 441226711.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117622147) 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, 12132 + ... + 19555.

Almost surely, 2^117622144 is an apocalyptic number.

It is an amenable number.

117622144 is an abundant number, since it is smaller than the sum of its proper divisors (124791056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117622144 is an equidigital number, since it uses as much as digits as its factorization.

117622144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31730 (or 31718 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 117622144 is about 10845.3743135034. The cubic root of 117622144 is about 489.9627126978.

Adding to 117622144 its reverse (441226711), we get a palindrome (558848855).

The spelling of 117622144 in words is "one hundred seventeen million, six hundred twenty-two thousand, one hundred forty-four".