145666327 has 8 divisors (see below), whose sum is σ = 150010256. Its totient is φ = 141365952.

The previous prime is 145666307. The next prime is 145666343. The reversal of 145666327 is 723666541.

145666327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145666327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145666327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145666307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4038 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (18751282).

Almost surely, 2^145666327 is an apocalyptic number.

145666327 is a deficient number, since it is larger than the sum of its proper divisors (4343929).

145666327 is a wasteful number, since it uses less digits than its factorization.

145666327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21777.

The product of its digits is 181440, while the sum is 40.

The square root of 145666327 is about 12069.2305885669. The cubic root of 145666327 is about 526.1622950451.

The spelling of 145666327 in words is "one hundred forty-five million, six hundred sixty-six thousand, three hundred twenty-seven".