117443142 has 32 divisors (see below), whose sum is σ = 274723200. Its totient is φ = 37086984.

The previous prime is 117443101. The next prime is 117443149. The reversal of 117443142 is 241344711.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117443149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56208 + ... + 58259.

It is an arithmetic number, because the mean of its divisors is an integer number (8585100).

Almost surely, 2^117443142 is an apocalyptic number.

117443142 is an abundant number, since it is smaller than the sum of its proper divisors (157280058).

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

117443142 is a wasteful number, since it uses less digits than its factorization.

117443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114497 (or 114491 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 117443142 is about 10837.1187130159. The cubic root of 117443142 is about 489.7140383389.

Adding to 117443142 its reverse (241344711), we get a palindrome (358787853).

The spelling of 117443142 in words is "one hundred seventeen million, four hundred forty-three thousand, one hundred forty-two".