145215405154044 has 72 divisors (see below), whose sum is σ = 367392981795840. Its totient is φ = 48362851070112.

The previous prime is 145215405154033. The next prime is 145215405154067. The reversal of 145215405154044 is 440451504512541.

145215405154044 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 1 + 54 + 0 + 51 + 540 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 509172517 + ... + 509457635.

It is an arithmetic number, because the mean of its divisors is an integer number (5102680302720).

Almost surely, 2^{145215405154044} is an apocalyptic number.

It is an amenable number.

145215405154044 is an abundant number, since it is smaller than the sum of its proper divisors (222177576641796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145215405154044 is a wasteful number, since it uses less digits than its factorization.

145215405154044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297439 (or 297434 counting only the distinct ones).

The product of its (nonzero) digits is 1280000, while the sum is 45.

Adding to 145215405154044 its reverse (440451504512541), we get a palindrome (585666909666585).

The spelling of 145215405154044 in words is "one hundred forty-five trillion, two hundred fifteen billion, four hundred five million, one hundred fifty-four thousand, forty-four".