2145144045013 has 8 divisors (see below), whose sum is σ = 2153067580440. Its totient is φ = 2137222563840.

The previous prime is 2145144045001. The next prime is 2145144045041. The reversal of 2145144045013 is 3105404415412.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 242007915249 + 1903136129764 = 491943^2 + 1379542^2 .

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 2145144045013 - 2⁹ = 2145144044501 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 2145144045013.

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 7 ways as a sum of consecutive naturals, for example, 1594731 + ... + 2614087.

It is an arithmetic number, because the mean of its divisors is an integer number (269133447555).

Almost surely, 2^{2145144045013} is an apocalyptic number.

It is an amenable number.

2145144045013 is a deficient number, since it is larger than the sum of its proper divisors (7923535427).

2145144045013 is a wasteful number, since it uses less digits than its factorization.

2145144045013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027127.

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

The spelling of 2145144045013 in words is "two trillion, one hundred forty-five billion, one hundred forty-four million, forty-five thousand, thirteen".