144575745511 has 4 divisors (see below), whose sum is σ = 145324842832. Its totient is φ = 143826648192.

The previous prime is 144575745493. The next prime is 144575745553. The reversal of 144575745511 is 115547575441.

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

It is a cyclic number.

It is not a de Polignac number, because 144575745511 - 2¹¹ = 144575743463 is a prime.

It is a super-2 number, since 2×144575745511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144575745211) 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, 374548371 + ... + 374548756.

It is an arithmetic number, because the mean of its divisors is an integer number (36331210708).

Almost surely, 2^144575745511 is an apocalyptic number.

144575745511 is a deficient number, since it is larger than the sum of its proper divisors (749097321).

144575745511 is an equidigital number, since it uses as much as digits as its factorization.

144575745511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749097320.

The product of its digits is 1960000, while the sum is 49.

The spelling of 144575745511 in words is "one hundred forty-four billion, five hundred seventy-five million, seven hundred forty-five thousand, five hundred eleven".