144432002621 has 2 divisors, whose sum is σ = 144432002622. Its totient is φ = 144432002620.

The previous prime is 144432002599. The next prime is 144432002623. The reversal of 144432002621 is 126200234441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114321076996 + 30110925625 = 338114^2 + 173525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144432002621 is a prime.

It is a super-2 number, since 2×144432002621² (a number of 23 digits) contains 22 as substring.

Together with 144432002623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144432002623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72216001310 + 72216001311.

It is an arithmetic number, because the mean of its divisors is an integer number (72216001311).

Almost surely, 2^144432002621 is an apocalyptic number.

It is an amenable number.

144432002621 is a deficient number, since it is larger than the sum of its proper divisors (1).

144432002621 is an equidigital number, since it uses as much as digits as its factorization.

144432002621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 144432002621 in words is "one hundred forty-four billion, four hundred thirty-two million, two thousand, six hundred twenty-one".