2145144045053 has 4 divisors (see below), whose sum is σ = 2157543721788. Its totient is φ = 2132744368320.

The previous prime is 2145144045047. The next prime is 2145144045061. The reversal of 2145144045053 is 3505404415412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1727862928324 + 417281116729 = 1314482^2 + 645973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145144045053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145144044998 and 2145144045016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145144045043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6199838108 + ... + 6199838453.

It is an arithmetic number, because the mean of its divisors is an integer number (539385930447).

Almost surely, 2^{2145144045053} is an apocalyptic number.

It is an amenable number.

2145144045053 is a deficient number, since it is larger than the sum of its proper divisors (12399676735).

2145144045053 is a wasteful number, since it uses less digits than its factorization.

2145144045053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12399676734.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 2145144045053 in words is "two trillion, one hundred forty-five billion, one hundred forty-four million, forty-five thousand, fifty-three".