145244645212 has 12 divisors (see below), whose sum is σ = 258973943256. Its totient is φ = 71252090000.

The previous prime is 145244645207. The next prime is 145244645213. The reversal of 145244645212 is 212546442541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145244645213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342557914 + ... + 342558337.

It is an arithmetic number, because the mean of its divisors is an integer number (21581161938).

Almost surely, 2^145244645212 is an apocalyptic number.

It is an amenable number.

145244645212 is a deficient number, since it is larger than the sum of its proper divisors (113729298044).

145244645212 is a wasteful number, since it uses less digits than its factorization.

145244645212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685116308 (or 685116306 counting only the distinct ones).

The product of its digits is 307200, while the sum is 40.

The spelling of 145244645212 in words is "one hundred forty-five billion, two hundred forty-four million, six hundred forty-five thousand, two hundred twelve".