145671188 has 12 divisors (see below), whose sum is σ = 274534260. Its totient is φ = 67232832.

The previous prime is 145671187. The next prime is 145671209. The reversal of 145671188 is 881176541.

145671188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5769604 + 139901584 = 2402^2 + 11828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145671187) 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, 1400633 + ... + 1400736.

It is an arithmetic number, because the mean of its divisors is an integer number (22877855).

Almost surely, 2^145671188 is an apocalyptic number.

It is an amenable number.

145671188 is a deficient number, since it is larger than the sum of its proper divisors (128863072).

145671188 is a wasteful number, since it uses less digits than its factorization.

145671188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801386 (or 2801384 counting only the distinct ones).

The product of its digits is 53760, while the sum is 41.

The square root of 145671188 is about 12069.4319667497. The cubic root of 145671188 is about 526.1681477967.

The spelling of 145671188 in words is "one hundred forty-five million, six hundred seventy-one thousand, one hundred eighty-eight".