673334145 has 36 divisors (see below), whose sum is σ = 1282869588. Its totient is φ = 326462400.

The previous prime is 673334111. The next prime is 673334149. The reversal of 673334145 is 541433376.

It can be written as a sum of positive squares in 2 ways, for example, as 144288144 + 529046001 = 12012^2 + 23001^2 .

It is not a de Polignac number, because 673334145 - 2¹⁰ = 673333121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (673334149) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56386 + ... + 67275.

Almost surely, 2^673334145 is an apocalyptic number.

It is an amenable number.

673334145 is a deficient number, since it is larger than the sum of its proper divisors (609535443).

673334145 is a wasteful number, since it uses less digits than its factorization.

673334145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123694 (or 123680 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 673334145 is about 25948.6829145527. The cubic root of 673334145 is about 876.4830989209.

The spelling of 673334145 in words is "six hundred seventy-three million, three hundred thirty-four thousand, one hundred forty-five".