146439818 has 8 divisors (see below), whose sum is σ = 251039712. Its totient is φ = 62759916.

The previous prime is 146439803. The next prime is 146439847. The reversal of 146439818 is 818934641.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5229980 + ... + 5230007.

It is an arithmetic number, because the mean of its divisors is an integer number (31379964).

Almost surely, 2^146439818 is an apocalyptic number.

146439818 is a deficient number, since it is larger than the sum of its proper divisors (104599894).

146439818 is a wasteful number, since it uses less digits than its factorization.

146439818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459996.

The product of its digits is 165888, while the sum is 44.

The square root of 146439818 is about 12101.2320860316. The cubic root of 146439818 is about 527.0919621029.

The spelling of 146439818 in words is "one hundred forty-six million, four hundred thirty-nine thousand, eight hundred eighteen".