2134199989 has 2 divisors, whose sum is σ = 2134199990. Its totient is φ = 2134199988.

The previous prime is 2134199959. The next prime is 2134200007. The reversal of 2134199989 is 9899914312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1921331889 + 212868100 = 43833^2 + 14590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134199989 - 2⁵ = 2134199957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134199939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067099994 + 1067099995.

It is an arithmetic number, because the mean of its divisors is an integer number (1067099995).

Almost surely, 2^2134199989 is an apocalyptic number.

It is an amenable number.

2134199989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134199989 is an equidigital number, since it uses as much as digits as its factorization.

2134199989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 55.

The square root of 2134199989 is about 46197.4024053301. The cubic root of 2134199989 is about 1287.4934781333.

The spelling of 2134199989 in words is "two billion, one hundred thirty-four million, one hundred ninety-nine thousand, nine hundred eighty-nine".