145203513445012 has 24 divisors (see below), whose sum is σ = 281905126261920. Its totient is φ = 64882925883360.

The previous prime is 145203513445007. The next prime is 145203513445013. The reversal of 145203513445012 is 210544315302541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145203513445013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27966775803 + ... + 27966780994.

It is an arithmetic number, because the mean of its divisors is an integer number (11746046927580).

Almost surely, 2^{145203513445012} is an apocalyptic number.

It is an amenable number.

145203513445012 is a deficient number, since it is larger than the sum of its proper divisors (136701612816908).

145203513445012 is a wasteful number, since it uses less digits than its factorization.

145203513445012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55933556871 (or 55933556869 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 145203513445012 its reverse (210544315302541), we get a palindrome (355747828747553).

The spelling of 145203513445012 in words is "one hundred forty-five trillion, two hundred three billion, five hundred thirteen million, four hundred forty-five thousand, twelve".