136243007 has 4 divisors (see below), whose sum is σ = 142166640. Its totient is φ = 130319376.

The previous prime is 136242973. The next prime is 136243021. The reversal of 136243007 is 700342631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136243007 - 2⁶ = 136242943 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 (136243057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961782 + ... + 2961827.

It is an arithmetic number, because the mean of its divisors is an integer number (35541660).

Almost surely, 2^136243007 is an apocalyptic number.

136243007 is a deficient number, since it is larger than the sum of its proper divisors (5923633).

136243007 is an equidigital number, since it uses as much as digits as its factorization.

136243007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923632.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 136243007 is about 11672.3179788763. The cubic root of 136243007 is about 514.5624297183.

Adding to 136243007 its reverse (700342631), we get a palindrome (836585638).

The spelling of 136243007 in words is "one hundred thirty-six million, two hundred forty-three thousand, seven".