144025261 has 2 divisors, whose sum is σ = 144025262. Its totient is φ = 144025260.

The previous prime is 144025237. The next prime is 144025279. The reversal of 144025261 is 162520441.

It is a happy number.

144025261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139948900 + 4076361 = 11830^2 + 2019^2 .

It is an emirp because it is prime and its reverse (162520441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144025261 - 2¹¹ = 144023213 is a prime.

It is a super-2 number, since 2×144025261² = 41486551612236242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144025291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72012630 + 72012631.

It is an arithmetic number, because the mean of its divisors is an integer number (72012631).

Almost surely, 2^144025261 is an apocalyptic number.

It is an amenable number.

144025261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144025261 is an equidigital number, since it uses as much as digits as its factorization.

144025261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 144025261 is about 12001.0524955106. The cubic root of 144025261 is about 524.1789263777.

The spelling of 144025261 in words is "one hundred forty-four million, twenty-five thousand, two hundred sixty-one".