144564551 has 2 divisors, whose sum is σ = 144564552. Its totient is φ = 144564550.

The previous prime is 144564547. The next prime is 144564557. The reversal of 144564551 is 155465441.

144564551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144564551 - 2² = 144564547 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144564557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72282275 + 72282276.

It is an arithmetic number, because the mean of its divisors is an integer number (72282276).

Almost surely, 2^144564551 is an apocalyptic number.

144564551 is a deficient number, since it is larger than the sum of its proper divisors (1).

144564551 is an equidigital number, since it uses as much as digits as its factorization.

144564551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 35.

The square root of 144564551 is about 12023.4999480185. The cubic root of 144564551 is about 524.8323588712.

The spelling of 144564551 in words is "one hundred forty-four million, five hundred sixty-four thousand, five hundred fifty-one".