134203505 has 8 divisors (see below), whose sum is σ = 168046272. Its totient is φ = 102694768.

The previous prime is 134203483. The next prime is 134203513. The reversal of 134203505 is 505302431.

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 134203505 - 2¹⁸ = 133941361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583379 + ... + 583608.

It is an arithmetic number, because the mean of its divisors is an integer number (21005784).

Almost surely, 2^134203505 is an apocalyptic number.

It is an amenable number.

134203505 is a deficient number, since it is larger than the sum of its proper divisors (33842767).

134203505 is a wasteful number, since it uses less digits than its factorization.

134203505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167015.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 134203505 is about 11584.6236451600. The cubic root of 134203505 is about 511.9819138814.

Adding to 134203505 its reverse (505302431), we get a palindrome (639505936).

The spelling of 134203505 in words is "one hundred thirty-four million, two hundred three thousand, five hundred five".