134240399 has 8 divisors (see below), whose sum is σ = 136890000. Its totient is φ = 131603392.

The previous prime is 134240369. The next prime is 134240401. The reversal of 134240399 is 993042431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134240399 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 (134240369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20027 + ... + 25875.

It is an arithmetic number, because the mean of its divisors is an integer number (17111250).

Almost surely, 2^134240399 is an apocalyptic number.

134240399 is a deficient number, since it is larger than the sum of its proper divisors (2649601).

134240399 is an equidigital number, since it uses as much as digits as its factorization.

134240399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6297.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 134240399 is about 11586.2159051176. The cubic root of 134240399 is about 512.0288260443.

The spelling of 134240399 in words is "one hundred thirty-four million, two hundred forty thousand, three hundred ninety-nine".