146886478 has 8 divisors (see below), whose sum is σ = 220500720. Its totient is φ = 73386240.

The previous prime is 146886461. The next prime is 146886491. The reversal of 146886478 is 874688641.

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

It is a congruent number.

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, 25203 + ... + 30478.

It is an arithmetic number, because the mean of its divisors is an integer number (27562590).

Almost surely, 2^146886478 is an apocalyptic number.

146886478 is a deficient number, since it is larger than the sum of its proper divisors (73614242).

146886478 is a wasteful number, since it uses less digits than its factorization.

146886478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57002.

The product of its digits is 2064384, while the sum is 52.

The square root of 146886478 is about 12119.6731804121. The cubic root of 146886478 is about 527.6273172613.

The spelling of 146886478 in words is "one hundred forty-six million, eight hundred eighty-six thousand, four hundred seventy-eight".