63148889 has 2 divisors, whose sum is σ = 63148890. Its totient is φ = 63148888.

The previous prime is 63148867. The next prime is 63148901. The reversal of 63148889 is 98884136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55950400 + 7198489 = 7480^2 + 2683^2 .

It is a cyclic number.

It is not a de Polignac number, because 63148889 - 2¹² = 63144793 is a prime.

It is not a weakly prime, because it can be changed into another prime (63148859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31574444 + 31574445.

It is an arithmetic number, because the mean of its divisors is an integer number (31574445).

Almost surely, 2^63148889 is an apocalyptic number.

It is an amenable number.

63148889 is a deficient number, since it is larger than the sum of its proper divisors (1).

63148889 is an equidigital number, since it uses as much as digits as its factorization.

63148889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 47.

The square root of 63148889 is about 7946.6275236732. The cubic root of 63148889 is about 398.2189333580.

The spelling of 63148889 in words is "sixty-three million, one hundred forty-eight thousand, eight hundred eighty-nine".