136188349 has 4 divisors (see below), whose sum is σ = 148569120. Its totient is φ = 123807580.

The previous prime is 136188329. The next prime is 136188397. The reversal of 136188349 is 943881631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136188349 - 2¹⁷ = 136057277 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 (136188319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6190369 + ... + 6190390.

It is an arithmetic number, because the mean of its divisors is an integer number (37142280).

Almost surely, 2^136188349 is an apocalyptic number.

It is an amenable number.

136188349 is a deficient number, since it is larger than the sum of its proper divisors (12380771).

136188349 is a wasteful number, since it uses less digits than its factorization.

136188349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380770.

The product of its digits is 124416, while the sum is 43.

The square root of 136188349 is about 11669.9763924354. The cubic root of 136188349 is about 514.4936097576.

The spelling of 136188349 in words is "one hundred thirty-six million, one hundred eighty-eight thousand, three hundred forty-nine".