145168188 has 48 divisors (see below), whose sum is σ = 374223360. Its totient is φ = 43430400.

The previous prime is 145168183. The next prime is 145168193. The reversal of 145168188 is 881861541.

145168188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145168183) and next prime (145168193).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145168183) 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, 3468 + ... + 17388.

It is an arithmetic number, because the mean of its divisors is an integer number (7796320).

Almost surely, 2^145168188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145168188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187111680).

145168188 is an abundant number, since it is smaller than the sum of its proper divisors (229055172).

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

145168188 is a wasteful number, since it uses less digits than its factorization.

145168188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14018 (or 14016 counting only the distinct ones).

The product of its digits is 61440, while the sum is 42.

The square root of 145168188 is about 12048.5761814415. The cubic root of 145168188 is about 525.5618330025.

The spelling of 145168188 in words is "one hundred forty-five million, one hundred sixty-eight thousand, one hundred eighty-eight".