146986573 has 4 divisors (see below), whose sum is σ = 155632860. Its totient is φ = 138340288.

The previous prime is 146986547. The next prime is 146986589. The reversal of 146986573 is 375689641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59320804 + 87665769 = 7702^2 + 9363^2 .

It is a de Polignac number, because none of the positive numbers 2^k-146986573 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146980573) 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, 4323118 + ... + 4323151.

It is an arithmetic number, because the mean of its divisors is an integer number (38908215).

Almost surely, 2^146986573 is an apocalyptic number.

It is an amenable number.

146986573 is a deficient number, since it is larger than the sum of its proper divisors (8646287).

146986573 is an equidigital number, since it uses as much as digits as its factorization.

146986573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8646286.

The product of its digits is 1088640, while the sum is 49.

The square root of 146986573 is about 12123.8019201899. The cubic root of 146986573 is about 527.7471396467.

The spelling of 146986573 in words is "one hundred forty-six million, nine hundred eighty-six thousand, five hundred seventy-three".