134403247 has 8 divisors (see below), whose sum is σ = 146708352. Its totient is φ = 122112600.

The previous prime is 134403233. The next prime is 134403271. The reversal of 134403247 is 742304431.

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

It is a cyclic number.

It is not a de Polignac number, because 134403247 - 2⁷ = 134403119 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 (134403287) 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, 27568 + ... + 32074.

It is an arithmetic number, because the mean of its divisors is an integer number (18338544).

Almost surely, 2^134403247 is an apocalyptic number.

134403247 is a deficient number, since it is larger than the sum of its proper divisors (12305105).

134403247 is a wasteful number, since it uses less digits than its factorization.

134403247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 134403247 is about 11593.2414362852. The cubic root of 134403247 is about 512.2357910020.

Adding to 134403247 its reverse (742304431), we get a palindrome (876707678).

The spelling of 134403247 in words is "one hundred thirty-four million, four hundred three thousand, two hundred forty-seven".