144571369 has 2 divisors, whose sum is σ = 144571370. Its totient is φ = 144571368.

The previous prime is 144571331. The next prime is 144571373. The reversal of 144571369 is 963175441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 67043344 = 8805^2 + 8188^2 .

It is a cyclic number.

It is not a de Polignac number, because 144571369 - 2⁹ = 144570857 is a prime.

It is a super-2 number, since 2×144571369² = 41801761469068322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144571379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72285684 + 72285685.

It is an arithmetic number, because the mean of its divisors is an integer number (72285685).

Almost surely, 2^144571369 is an apocalyptic number.

It is an amenable number.

144571369 is a deficient number, since it is larger than the sum of its proper divisors (1).

144571369 is an equidigital number, since it uses as much as digits as its factorization.

144571369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 144571369 is about 12023.7834727676. The cubic root of 144571369 is about 524.8406095125.

The spelling of 144571369 in words is "one hundred forty-four million, five hundred seventy-one thousand, three hundred sixty-nine".