134802989 has 2 divisors, whose sum is σ = 134802990. Its totient is φ = 134802988.

The previous prime is 134802971. The next prime is 134803037. The reversal of 134802989 is 989208431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119137225 + 15665764 = 10915^2 + 3958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134802989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136802989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67401494 + 67401495.

It is an arithmetic number, because the mean of its divisors is an integer number (67401495).

Almost surely, 2^134802989 is an apocalyptic number.

It is an amenable number.

134802989 is a deficient number, since it is larger than the sum of its proper divisors (1).

134802989 is an equidigital number, since it uses as much as digits as its factorization.

134802989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 134802989 is about 11610.4689397113. The cubic root of 134802989 is about 512.7431187582.

The spelling of 134802989 in words is "one hundred thirty-four million, eight hundred two thousand, nine hundred eighty-nine".