136226647 has 2 divisors, whose sum is σ = 136226648. Its totient is φ = 136226646.

The previous prime is 136226621. The next prime is 136226663. The reversal of 136226647 is 746622631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136226647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136226147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68113323 + 68113324.

It is an arithmetic number, because the mean of its divisors is an integer number (68113324).

Almost surely, 2^136226647 is an apocalyptic number.

136226647 is a deficient number, since it is larger than the sum of its proper divisors (1).

136226647 is an equidigital number, since it uses as much as digits as its factorization.

136226647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 136226647 is about 11671.6171544478. The cubic root of 136226647 is about 514.5418327509.

The spelling of 136226647 in words is "one hundred thirty-six million, two hundred twenty-six thousand, six hundred forty-seven".