136951247 has 2 divisors, whose sum is σ = 136951248. Its totient is φ = 136951246.

The previous prime is 136951237. The next prime is 136951267. The reversal of 136951247 is 742159631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136951247 - 2⁸ = 136950991 is a prime.

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 136951247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136951207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68475623 + 68475624.

It is an arithmetic number, because the mean of its divisors is an integer number (68475624).

Almost surely, 2^136951247 is an apocalyptic number.

136951247 is a deficient number, since it is larger than the sum of its proper divisors (1).

136951247 is an equidigital number, since it uses as much as digits as its factorization.

136951247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 136951247 is about 11702.6171004609. The cubic root of 136951247 is about 515.4525158347.

The spelling of 136951247 in words is "one hundred thirty-six million, nine hundred fifty-one thousand, two hundred forty-seven".