63144649 has 2 divisors, whose sum is σ = 63144650. Its totient is φ = 63144648.

The previous prime is 63144623. The next prime is 63144667. The reversal of 63144649 is 94644136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 23454649 = 6300^2 + 4843^2 .

It is a cyclic number.

It is not a de Polignac number, because 63144649 - 2¹¹ = 63142601 is a prime.

It is not a weakly prime, because it can be changed into another prime (63144149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31572324 + 31572325.

It is an arithmetic number, because the mean of its divisors is an integer number (31572325).

Almost surely, 2^63144649 is an apocalyptic number.

It is an amenable number.

63144649 is a deficient number, since it is larger than the sum of its proper divisors (1).

63144649 is an equidigital number, since it uses as much as digits as its factorization.

63144649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 63144649 is about 7946.3607393574. The cubic root of 63144649 is about 398.2100206329.

The spelling of 63144649 in words is "sixty-three million, one hundred forty-four thousand, six hundred forty-nine".