136785827 has 2 divisors, whose sum is σ = 136785828. Its totient is φ = 136785826.

The previous prime is 136785823. The next prime is 136785871. The reversal of 136785827 is 728587631.

It is a happy number.

136785827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (728587631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136785827 - 2² = 136785823 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136785823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68392913 + 68392914.

It is an arithmetic number, because the mean of its divisors is an integer number (68392914).

Almost surely, 2^136785827 is an apocalyptic number.

136785827 is a deficient number, since it is larger than the sum of its proper divisors (1).

136785827 is an equidigital number, since it uses as much as digits as its factorization.

136785827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The square root of 136785827 is about 11695.5473151110. The cubic root of 136785827 is about 515.2448981353.

The spelling of 136785827 in words is "one hundred thirty-six million, seven hundred eighty-five thousand, eight hundred twenty-seven".