134321287 has 2 divisors, whose sum is σ = 134321288. Its totient is φ = 134321286.

The previous prime is 134321281. The next prime is 134321309. The reversal of 134321287 is 782123431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134321287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134321281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67160643 + 67160644.

It is an arithmetic number, because the mean of its divisors is an integer number (67160644).

Almost surely, 2^134321287 is an apocalyptic number.

134321287 is a deficient number, since it is larger than the sum of its proper divisors (1).

134321287 is an equidigital number, since it uses as much as digits as its factorization.

134321287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 134321287 is about 11589.7060791031. The cubic root of 134321287 is about 512.1316482250.

The spelling of 134321287 in words is "one hundred thirty-four million, three hundred twenty-one thousand, two hundred eighty-seven".