63101989 has 2 divisors, whose sum is σ = 63101990. Its totient is φ = 63101988.

The previous prime is 63101933. The next prime is 63102037. The reversal of 63101989 is 98910136.

63101989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55621764 + 7480225 = 7458^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 63101989 - 2⁷ = 63101861 is a prime.

It is a super-2 number, since 2×63101989² = 7963722031512242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63104989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31550994 + 31550995.

It is an arithmetic number, because the mean of its divisors is an integer number (31550995).

Almost surely, 2^63101989 is an apocalyptic number.

It is an amenable number.

63101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

63101989 is an equidigital number, since it uses as much as digits as its factorization.

63101989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 63101989 is about 7943.6760382080. The cubic root of 63101989 is about 398.1203246372.

The spelling of 63101989 in words is "sixty-three million, one hundred one thousand, nine hundred eighty-nine".