2145400113445 has 8 divisors (see below), whose sum is σ = 2599475089536. Its totient is φ = 1699656788496.

The previous prime is 2145400113397. The next prime is 2145400113529. The reversal of 2145400113445 is 5443110045412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145400113445 - 2³¹ = 2143252629797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145400113445.

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 7 ways as a sum of consecutive naturals, for example, 2082912217 + ... + 2082913246.

It is an arithmetic number, because the mean of its divisors is an integer number (324934386192).

Almost surely, 2^{2145400113445} is an apocalyptic number.

It is an amenable number.

2145400113445 is a deficient number, since it is larger than the sum of its proper divisors (454074976091).

2145400113445 is a wasteful number, since it uses less digits than its factorization.

2145400113445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165825571.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 2145400113445 its reverse (5443110045412), we get a palindrome (7588510158857).

The spelling of 2145400113445 in words is "two trillion, one hundred forty-five billion, four hundred million, one hundred thirteen thousand, four hundred forty-five".