145668418 has 8 divisors (see below), whose sum is σ = 249717312. Its totient is φ = 62429316.

The previous prime is 145668389. The next prime is 145668437. The reversal of 145668418 is 814866541.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5202430 + ... + 5202457.

It is an arithmetic number, because the mean of its divisors is an integer number (31214664).

Almost surely, 2^145668418 is an apocalyptic number.

145668418 is a deficient number, since it is larger than the sum of its proper divisors (104048894).

145668418 is a wasteful number, since it uses less digits than its factorization.

145668418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404896.

The product of its digits is 184320, while the sum is 43.

The square root of 145668418 is about 12069.3172134964. The cubic root of 145668418 is about 526.1648126713.

The spelling of 145668418 in words is "one hundred forty-five million, six hundred sixty-eight thousand, four hundred eighteen".