145541245532212 has 24 divisors (see below), whose sum is σ = 257401489189320. Its totient is φ = 71998985625600.

The previous prime is 145541245532183. The next prime is 145541245532233. The reversal of 145541245532212 is 212235542145541.

It is a happy number.

145541245532212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2543559281316 + 142997686250896 = 1594854^2 + 11958164^2 .

It is a super-2 number, since 2×145541245532212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127269873 + ... + 128408344.

It is an arithmetic number, because the mean of its divisors is an integer number (10725062049555).

Almost surely, 2^{145541245532212} is an apocalyptic number.

It is an amenable number.

145541245532212 is a deficient number, since it is larger than the sum of its proper divisors (111860243657108).

145541245532212 is a wasteful number, since it uses less digits than its factorization.

145541245532212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255679731 (or 255679729 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 46.

Adding to 145541245532212 its reverse (212235542145541), we get a palindrome (357776787677753).

The spelling of 145541245532212 in words is "one hundred forty-five trillion, five hundred forty-one billion, two hundred forty-five million, five hundred thirty-two thousand, two hundred twelve".