134455889 has 2 divisors, whose sum is σ = 134455890. Its totient is φ = 134455888.

The previous prime is 134455819. The next prime is 134455921. The reversal of 134455889 is 988554431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 46471489 = 9380^2 + 6817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134455889 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (134455819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67227944 + 67227945.

It is an arithmetic number, because the mean of its divisors is an integer number (67227945).

Almost surely, 2^134455889 is an apocalyptic number.

It is an amenable number.

134455889 is a deficient number, since it is larger than the sum of its proper divisors (1).

134455889 is an equidigital number, since it uses as much as digits as its factorization.

134455889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 47.

The square root of 134455889 is about 11595.5115885415. The cubic root of 134455889 is about 512.3026584262.

The spelling of 134455889 in words is "one hundred thirty-four million, four hundred fifty-five thousand, eight hundred eighty-nine".