136368243 has 12 divisors (see below), whose sum is σ = 214883448. Its totient is φ = 82647360.

The previous prime is 136368241. The next prime is 136368269. The reversal of 136368243 is 342863631.

136368243 is a `hidden beast` number, since 13 + 636 + 8 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 136368243 - 2¹ = 136368241 is a prime.

It is a super-3 number, since 3×136368243³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136368198 and 136368207.

It is not an unprimeable number, because it can be changed into a prime (136368241) 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, 688630 + ... + 688827.

It is an arithmetic number, because the mean of its divisors is an integer number (17906954).

Almost surely, 2^136368243 is an apocalyptic number.

136368243 is a deficient number, since it is larger than the sum of its proper divisors (78515205).

136368243 is a wasteful number, since it uses less digits than its factorization.

136368243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377474 (or 1377471 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 136368243 is about 11677.6814051420. The cubic root of 136368243 is about 514.7200451604.

The spelling of 136368243 in words is "one hundred thirty-six million, three hundred sixty-eight thousand, two hundred forty-three".