2154504112445 has 32 divisors (see below), whose sum is σ = 2698981516800. Its totient is φ = 1650023391744.

The previous prime is 2154504112441. The next prime is 2154504112447. The reversal of 2154504112445 is 5442114054512.

It is a cyclic number.

It is not a de Polignac number, because 2154504112445 - 2² = 2154504112441 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2154504112399 and 2154504112408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154504112441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068059 + ... + 2334471.

It is an arithmetic number, because the mean of its divisors is an integer number (84343172400).

Almost surely, 2^{2154504112445} is an apocalyptic number.

It is an amenable number.

2154504112445 is a deficient number, since it is larger than the sum of its proper divisors (544477404355).

2154504112445 is a wasteful number, since it uses less digits than its factorization.

2154504112445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266629.

The product of its (nonzero) digits is 128000, while the sum is 38.

Adding to 2154504112445 its reverse (5442114054512), we get a palindrome (7596618166957).

The spelling of 2154504112445 in words is "two trillion, one hundred fifty-four billion, five hundred four million, one hundred twelve thousand, four hundred forty-five".