63144973 has 2 divisors, whose sum is σ = 63144974. Its totient is φ = 63144972.

The previous prime is 63144967. The next prime is 63144997. The reversal of 63144973 is 37944136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 14884164 = 6947^2 + 3858^2 .

It is a cyclic number.

It is not a de Polignac number, because 63144973 - 2⁹ = 63144461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63142973) 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, 31572486 + 31572487.

It is an arithmetic number, because the mean of its divisors is an integer number (31572487).

Almost surely, 2^63144973 is an apocalyptic number.

It is an amenable number.

63144973 is a deficient number, since it is larger than the sum of its proper divisors (1).

63144973 is an equidigital number, since it uses as much as digits as its factorization.

63144973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 63144973 is about 7946.3811260221. The cubic root of 63144973 is about 398.2107017137.

The spelling of 63144973 in words is "sixty-three million, one hundred forty-four thousand, nine hundred seventy-three".