136401427 has 2 divisors, whose sum is σ = 136401428. Its totient is φ = 136401426.

The previous prime is 136401389. The next prime is 136401467. The reversal of 136401427 is 724104631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136401427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136401395 and 136401404.

It is not a weakly prime, because it can be changed into another prime (136401467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68200713 + 68200714.

It is an arithmetic number, because the mean of its divisors is an integer number (68200714).

Almost surely, 2^136401427 is an apocalyptic number.

136401427 is a deficient number, since it is larger than the sum of its proper divisors (1).

136401427 is an equidigital number, since it uses as much as digits as its factorization.

136401427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 136401427 is about 11679.1021487099. The cubic root of 136401427 is about 514.7617926238.

The spelling of 136401427 in words is "one hundred thirty-six million, four hundred one thousand, four hundred twenty-seven".