146681378 has 8 divisors (see below), whose sum is σ = 222078672. Its totient is φ = 72655156.

The previous prime is 146681377. The next prime is 146681383. The reversal of 146681378 is 873186641.

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

It is not an unprimeable number, because it can be changed into a prime (146681377) 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 3 ways as a sum of consecutive naturals, for example, 342500 + ... + 342927.

It is an arithmetic number, because the mean of its divisors is an integer number (27759834).

Almost surely, 2^146681378 is an apocalyptic number.

146681378 is a deficient number, since it is larger than the sum of its proper divisors (75397294).

146681378 is a wasteful number, since it uses less digits than its factorization.

146681378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685536.

The product of its digits is 193536, while the sum is 44.

The square root of 146681378 is about 12111.2087753453. The cubic root of 146681378 is about 527.3816246434.

The spelling of 146681378 in words is "one hundred forty-six million, six hundred eighty-one thousand, three hundred seventy-eight".