134136243 has 12 divisors (see below), whose sum is σ = 200928728. Its totient is φ = 89424000.

The previous prime is 134136241. The next prime is 134136263. The reversal of 134136243 is 342631431.

134136243 is a `hidden beast` number, since 1 + 3 + 413 + 6 + 243 = 666.

It is not a de Polignac number, because 134136243 - 2¹ = 134136241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134136241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275758 + ... + 276243.

Almost surely, 2^134136243 is an apocalyptic number.

134136243 is a deficient number, since it is larger than the sum of its proper divisors (66792485).

134136243 is an frugal number, since it uses more digits than its factorization.

134136243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552016 (or 552004 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 134136243 is about 11581.7202090190. The cubic root of 134136243 is about 511.8963654891.

Adding to 134136243 its reverse (342631431), we get a palindrome (476767674).

The spelling of 134136243 in words is "one hundred thirty-four million, one hundred thirty-six thousand, two hundred forty-three".