144092621 has 2 divisors, whose sum is σ = 144092622. Its totient is φ = 144092620.

The previous prime is 144092609. The next prime is 144092623. The reversal of 144092621 is 126290441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125126596 + 18966025 = 11186^2 + 4355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144092621 is a prime.

It is a Sophie Germain prime.

Together with 144092623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a zygodrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144092623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72046310 + 72046311.

It is an arithmetic number, because the mean of its divisors is an integer number (72046311).

Almost surely, 2^144092621 is an apocalyptic number.

It is an amenable number.

144092621 is a deficient number, since it is larger than the sum of its proper divisors (1).

144092621 is an equidigital number, since it uses as much as digits as its factorization.

144092621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 144092621 is about 12003.8585879708. The cubic root of 144092621 is about 524.2606323902.

The spelling of 144092621 in words is "one hundred forty-four million, ninety-two thousand, six hundred twenty-one".