145042666 has 32 divisors (see below), whose sum is σ = 228868416. Its totient is φ = 68880000.

The previous prime is 145042661. The next prime is 145042679. The reversal of 145042666 is 666240541.

145042666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145042661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687301 + ... + 687511.

It is an arithmetic number, because the mean of its divisors is an integer number (7152138).

Almost surely, 2^145042666 is an apocalyptic number.

145042666 is a deficient number, since it is larger than the sum of its proper divisors (83825750).

145042666 is a wasteful number, since it uses less digits than its factorization.

145042666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 145042666 is about 12043.3660577099. The cubic root of 145042666 is about 525.4103108352.

The spelling of 145042666 in words is "one hundred forty-five million, forty-two thousand, six hundred sixty-six".