136960247 has 2 divisors, whose sum is σ = 136960248. Its totient is φ = 136960246.

The previous prime is 136960169. The next prime is 136960249. The reversal of 136960247 is 742069631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136960247 - 2¹² = 136956151 is a prime.

Together with 136960249, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136960247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136960249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68480123 + 68480124.

It is an arithmetic number, because the mean of its divisors is an integer number (68480124).

Almost surely, 2^136960247 is an apocalyptic number.

136960247 is a deficient number, since it is larger than the sum of its proper divisors (1).

136960247 is an equidigital number, since it uses as much as digits as its factorization.

136960247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 136960247 is about 11703.0016235152. The cubic root of 136960247 is about 515.4638068869.

Subtracting from 136960247 its sum of digits (38), we obtain a square (136960209 = 11703²).

It can be divided in two parts, 1369 and 60247, that added together give a palindrome (61616).

The spelling of 136960247 in words is "one hundred thirty-six million, nine hundred sixty thousand, two hundred forty-seven".