63143657 has 2 divisors, whose sum is σ = 63143658. Its totient is φ = 63143656.

The previous prime is 63143599. The next prime is 63143693. The reversal of 63143657 is 75634136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57592921 + 5550736 = 7589^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 63143657 - 2¹⁰ = 63142633 is a prime.

It is a Chen prime.

It is equal to p_3737276 and since 63143657 and 3737276 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (63143057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31571828 + 31571829.

It is an arithmetic number, because the mean of its divisors is an integer number (31571829).

Almost surely, 2^63143657 is an apocalyptic number.

It is an amenable number.

63143657 is a deficient number, since it is larger than the sum of its proper divisors (1).

63143657 is an equidigital number, since it uses as much as digits as its factorization.

63143657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 63143657 is about 7946.2983206019. The cubic root of 63143657 is about 398.2079353339.

The spelling of 63143657 in words is "sixty-three million, one hundred forty-three thousand, six hundred fifty-seven".