146806985 has 16 divisors (see below), whose sum is σ = 200881296. Its totient is φ = 102033408.

The previous prime is 146806981. The next prime is 146807021. The reversal of 146806985 is 589608641.

It can be written as a sum of positive squares in 8 ways, for example, as 7118224 + 139688761 = 2668^2 + 11819^2 .

It is a cyclic number.

It is not a de Polignac number, because 146806985 - 2² = 146806981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146806981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65324 + ... + 67533.

It is an arithmetic number, because the mean of its divisors is an integer number (12555081).

Almost surely, 2^146806985 is an apocalyptic number.

It is an amenable number.

146806985 is a deficient number, since it is larger than the sum of its proper divisors (54074311).

146806985 is a wasteful number, since it uses less digits than its factorization.

146806985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132892.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 146806985 is about 12116.3932339620. The cubic root of 146806985 is about 527.5321184669.

The spelling of 146806985 in words is "one hundred forty-six million, eight hundred six thousand, nine hundred eighty-five".