968551189 has 2 divisors, whose sum is σ = 968551190. Its totient is φ = 968551188.

The previous prime is 968551169. The next prime is 968551211. The reversal of 968551189 is 981155869.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723879025 + 244672164 = 26905^2 + 15642^2 .

It is a cyclic number.

It is not a de Polignac number, because 968551189 - 2⁷ = 968551061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (968551169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484275594 + 484275595.

It is an arithmetic number, because the mean of its divisors is an integer number (484275595).

Almost surely, 2^968551189 is an apocalyptic number.

It is an amenable number.

968551189 is a deficient number, since it is larger than the sum of its proper divisors (1).

968551189 is an equidigital number, since it uses as much as digits as its factorization.

968551189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 52.

The square root of 968551189 is about 31121.5550543349. Note that the first 3 decimals coincide. The cubic root of 968551189 is about 989.4052098417.

The spelling of 968551189 in words is "nine hundred sixty-eight million, five hundred fifty-one thousand, one hundred eighty-nine".