146856985 has 16 divisors (see below), whose sum is σ = 202368960. Its totient is φ = 101183040.

The previous prime is 146856977. The next prime is 146856989. The reversal of 146856985 is 589658641.

It is not a de Polignac number, because 146856985 - 2³ = 146856977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146856989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69222 + ... + 71311.

It is an arithmetic number, because the mean of its divisors is an integer number (12648060).

Almost surely, 2^146856985 is an apocalyptic number.

It is an amenable number.

146856985 is a deficient number, since it is larger than the sum of its proper divisors (55511975).

146856985 is a wasteful number, since it uses less digits than its factorization.

146856985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140568.

The product of its digits is 2073600, while the sum is 52.

The square root of 146856985 is about 12118.4563785987. The cubic root of 146856985 is about 527.5920012034.

The spelling of 146856985 in words is "one hundred forty-six million, eight hundred fifty-six thousand, nine hundred eighty-five".