146873169 has 20 divisors (see below), whose sum is σ = 219738420. Its totient is φ = 97765920.

The previous prime is 146873143. The next prime is 146873189. The reversal of 146873169 is 961378641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60606225 + 86266944 = 7785^2 + 9288^2 .

It is not a de Polignac number, because 146873169 - 2¹⁵ = 146840401 is a prime.

It is a super-2 number, since 2×146873169² = 43143455544205122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146873189) 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 19 ways as a sum of consecutive naturals, for example, 85087 + ... + 86795.

It is an arithmetic number, because the mean of its divisors is an integer number (10986921).

Almost surely, 2^146873169 is an apocalyptic number.

It is an amenable number.

146873169 is a deficient number, since it is larger than the sum of its proper divisors (72865251).

146873169 is a wasteful number, since it uses less digits than its factorization.

146873169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782 (or 2773 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 146873169 is about 12119.1241020133. The cubic root of 146873169 is about 527.6113811358.

The spelling of 146873169 in words is "one hundred forty-six million, eight hundred seventy-three thousand, one hundred sixty-nine".