134867399 has 2 divisors, whose sum is σ = 134867400. Its totient is φ = 134867398.

The previous prime is 134867357. The next prime is 134867407. The reversal of 134867399 is 993768431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134867399 - 2¹² = 134863303 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134867899) 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, 67433699 + 67433700.

It is an arithmetic number, because the mean of its divisors is an integer number (67433700).

Almost surely, 2^134867399 is an apocalyptic number.

134867399 is a deficient number, since it is larger than the sum of its proper divisors (1).

134867399 is an equidigital number, since it uses as much as digits as its factorization.

134867399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 134867399 is about 11613.2423982280. The cubic root of 134867399 is about 512.8247700775.

The spelling of 134867399 in words is "one hundred thirty-four million, eight hundred sixty-seven thousand, three hundred ninety-nine".