144213215345 has 4 divisors (see below), whose sum is σ = 173055858420. Its totient is φ = 115370572272.

The previous prime is 144213215329. The next prime is 144213215357. The reversal of 144213215345 is 543512312441.

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 79428712561 + 64784502784 = 281831^2 + 254528^2 .

It is a cyclic number.

It is not a de Polignac number, because 144213215345 - 2⁴ = 144213215329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14421321530 + ... + 14421321539.

It is an arithmetic number, because the mean of its divisors is an integer number (43263964605).

Almost surely, 2^144213215345 is an apocalyptic number.

It is an amenable number.

144213215345 is a deficient number, since it is larger than the sum of its proper divisors (28842643075).

144213215345 is an equidigital number, since it uses as much as digits as its factorization.

144213215345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28842643074.

The product of its digits is 57600, while the sum is 35.

Adding to 144213215345 its reverse (543512312441), we get a palindrome (687725527786).

The spelling of 144213215345 in words is "one hundred forty-four billion, two hundred thirteen million, two hundred fifteen thousand, three hundred forty-five".