134242399 has 4 divisors (see below), whose sum is σ = 135066136. Its totient is φ = 133418664.

The previous prime is 134242393. The next prime is 134242403. The reversal of 134242399 is 993242431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134242399 - 2⁷ = 134242271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134242393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411624 + ... + 411949.

It is an arithmetic number, because the mean of its divisors is an integer number (33766534).

Almost surely, 2^134242399 is an apocalyptic number.

134242399 is a deficient number, since it is larger than the sum of its proper divisors (823737).

134242399 is an equidigital number, since it uses as much as digits as its factorization.

134242399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823736.

The product of its digits is 46656, while the sum is 37.

The square root of 134242399 is about 11586.3022142528. The cubic root of 134242399 is about 512.0313688768.

The spelling of 134242399 in words is "one hundred thirty-four million, two hundred forty-two thousand, three hundred ninety-nine".