136387847 has 2 divisors, whose sum is σ = 136387848. Its totient is φ = 136387846.

The previous prime is 136387831. The next prime is 136387877. The reversal of 136387847 is 748783631.

It is a weak prime.

It is an emirp because it is prime and its reverse (748783631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136387847 - 2⁴ = 136387831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136387807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68193923 + 68193924.

It is an arithmetic number, because the mean of its divisors is an integer number (68193924).

Almost surely, 2^136387847 is an apocalyptic number.

136387847 is a deficient number, since it is larger than the sum of its proper divisors (1).

136387847 is an equidigital number, since it uses as much as digits as its factorization.

136387847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 136387847 is about 11678.5207539311. The cubic root of 136387847 is about 514.7447089874.

The spelling of 136387847 in words is "one hundred thirty-six million, three hundred eighty-seven thousand, eight hundred forty-seven".