144064621 has 2 divisors, whose sum is σ = 144064622. Its totient is φ = 144064620.

The previous prime is 144064603. The next prime is 144064639. The reversal of 144064621 is 126460441.

It is a balanced prime because it is at equal distance from previous prime (144064603) and next prime (144064639).

It can be written as a sum of positive squares in only one way, i.e., 120890025 + 23174596 = 10995^2 + 4814^2 .

It is a cyclic number.

It is not a de Polignac number, because 144064621 - 2⁵ = 144064589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144064621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144064601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72032310 + 72032311.

It is an arithmetic number, because the mean of its divisors is an integer number (72032311).

Almost surely, 2^144064621 is an apocalyptic number.

It is an amenable number.

144064621 is a deficient number, since it is larger than the sum of its proper divisors (1).

144064621 is an equidigital number, since it uses as much as digits as its factorization.

144064621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 144064621 is about 12002.6922396602. The cubic root of 144064621 is about 524.2266721764.

The spelling of 144064621 in words is "one hundred forty-four million, sixty-four thousand, six hundred twenty-one".