144526621 has 2 divisors, whose sum is σ = 144526622. Its totient is φ = 144526620.

The previous prime is 144526609. The next prime is 144526631. The reversal of 144526621 is 126625441.

It is a happy number.

144526621 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., 114704100 + 29822521 = 10710^2 + 5461^2 .

It is a cyclic number.

It is not a de Polignac number, because 144526621 - 2¹⁷ = 144395549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144526631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72263310 + 72263311.

It is an arithmetic number, because the mean of its divisors is an integer number (72263311).

Almost surely, 2^144526621 is an apocalyptic number.

It is an amenable number.

144526621 is a deficient number, since it is larger than the sum of its proper divisors (1).

144526621 is an equidigital number, since it uses as much as digits as its factorization.

144526621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 144526621 is about 12021.9225168024. The cubic root of 144526621 is about 524.7864540430.

The spelling of 144526621 in words is "one hundred forty-four million, five hundred twenty-six thousand, six hundred twenty-one".