136294427 has 2 divisors, whose sum is σ = 136294428. Its totient is φ = 136294426.

The previous prime is 136294397. The next prime is 136294451. The reversal of 136294427 is 724492631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136294427 is a prime.

It is not a weakly prime, because it can be changed into another prime (136294727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68147213 + 68147214.

It is an arithmetic number, because the mean of its divisors is an integer number (68147214).

Almost surely, 2^136294427 is an apocalyptic number.

136294427 is a deficient number, since it is larger than the sum of its proper divisors (1).

136294427 is an equidigital number, since it uses as much as digits as its factorization.

136294427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 136294427 is about 11674.5204184155. The cubic root of 136294427 is about 514.6271559081.

The spelling of 136294427 in words is "one hundred thirty-six million, two hundred ninety-four thousand, four hundred twenty-seven".