144111449 has 2 divisors, whose sum is σ = 144111450. Its totient is φ = 144111448.

The previous prime is 144111437. The next prime is 144111497. The reversal of 144111449 is 944111441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97871449 + 46240000 = 9893^2 + 6800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144111449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144111419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72055724 + 72055725.

It is an arithmetic number, because the mean of its divisors is an integer number (72055725).

Almost surely, 2^144111449 is an apocalyptic number.

It is an amenable number.

144111449 is a deficient number, since it is larger than the sum of its proper divisors (1).

144111449 is an equidigital number, since it uses as much as digits as its factorization.

144111449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 144111449 is about 12004.6428101797. The cubic root of 144111449 is about 524.2834657345.

The spelling of 144111449 in words is "one hundred forty-four million, one hundred eleven thousand, four hundred forty-nine".