144354135511 has 4 divisors (see below), whose sum is σ = 144356339232. Its totient is φ = 144351931792.

The previous prime is 144354135491. The next prime is 144354135533. The reversal of 144354135511 is 115531453441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144354135511 is a prime.

It is a super-2 number, since 2×144354135511² (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 (144354135911) 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, 1000495 + ... + 1135648.

It is an arithmetic number, because the mean of its divisors is an integer number (36089084808).

Almost surely, 2^144354135511 is an apocalyptic number.

144354135511 is a deficient number, since it is larger than the sum of its proper divisors (2203721).

144354135511 is an equidigital number, since it uses as much as digits as its factorization.

144354135511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203720.

The product of its digits is 72000, while the sum is 37.

Adding to 144354135511 its reverse (115531453441), we get a palindrome (259885588952).

The spelling of 144354135511 in words is "one hundred forty-four billion, three hundred fifty-four million, one hundred thirty-five thousand, five hundred eleven".