134903281 has 2 divisors, whose sum is σ = 134903282. Its totient is φ = 134903280.

The previous prime is 134903267. The next prime is 134903291. The reversal of 134903281 is 182309431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89946256 + 44957025 = 9484^2 + 6705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134903281 is a prime.

It is a super-2 number, since 2×134903281² = 36397790449129922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134903261) 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, 67451640 + 67451641.

It is an arithmetic number, because the mean of its divisors is an integer number (67451641).

Almost surely, 2^134903281 is an apocalyptic number.

It is an amenable number.

134903281 is a deficient number, since it is larger than the sum of its proper divisors (1).

134903281 is an equidigital number, since it uses as much as digits as its factorization.

134903281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 134903281 is about 11614.7871698107. The cubic root of 134903281 is about 512.8702457246.

The spelling of 134903281 in words is "one hundred thirty-four million, nine hundred three thousand, two hundred eighty-one".