146699920 has 20 divisors (see below), whose sum is σ = 341077500. Its totient is φ = 58679936.

The previous prime is 146699897. The next prime is 146699941. The reversal of 146699920 is 29996641.

146699920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 82955664 + 63744256 = 9108^2 + 7984^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 916795 + ... + 916954.

It is an arithmetic number, because the mean of its divisors is an integer number (17053875).

Almost surely, 2^146699920 is an apocalyptic number.

146699920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146699920 is an abundant number, since it is smaller than the sum of its proper divisors (194377580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146699920 is a wasteful number, since it uses less digits than its factorization.

146699920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833762 (or 1833756 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 146699920 is about 12111.9742403953. The cubic root of 146699920 is about 527.4038458192.

The spelling of 146699920 in words is "one hundred forty-six million, six hundred ninety-nine thousand, nine hundred twenty".