405144501154225 has 12 divisors (see below), whose sum is σ = 574147635921664. Its totient is φ = 277813372219920.

The previous prime is 405144501154223. The next prime is 405144501154247. The reversal of 405144501154225 is 522451105441504.

It is not a de Polignac number, because 405144501154225 - 2¹ = 405144501154223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405144501154223) 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 11 ways as a sum of consecutive naturals, for example, 1157555717409 + ... + 1157555717758.

Almost surely, 2^{405144501154225} is an apocalyptic number.

It is an amenable number.

405144501154225 is a deficient number, since it is larger than the sum of its proper divisors (169003134767439).

405144501154225 is a wasteful number, since it uses less digits than its factorization.

405144501154225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315111435184 (or 2315111435179 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 43.

Adding to 405144501154225 its reverse (522451105441504), we get a palindrome (927595606595729).

The spelling of 405144501154225 in words is "four hundred five trillion, one hundred forty-four billion, five hundred one million, one hundred fifty-four thousand, two hundred twenty-five".