136742201 has 2 divisors, whose sum is σ = 136742202. Its totient is φ = 136742200.

The previous prime is 136742191. The next prime is 136742233. The reversal of 136742201 is 102247631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 40309801 = 9820^2 + 6349^2 .

It is an emirp because it is prime and its reverse (102247631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136742201 - 2²² = 132547897 is a prime.

It is not a weakly prime, because it can be changed into another prime (136742401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68371100 + 68371101.

It is an arithmetic number, because the mean of its divisors is an integer number (68371101).

Almost surely, 2^136742201 is an apocalyptic number.

It is an amenable number.

136742201 is a deficient number, since it is larger than the sum of its proper divisors (1).

136742201 is an equidigital number, since it uses as much as digits as its factorization.

136742201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 136742201 is about 11693.6820976115. The cubic root of 136742201 is about 515.1901155004.

Adding to 136742201 its reverse (102247631), we get a palindrome (238989832).

The spelling of 136742201 in words is "one hundred thirty-six million, seven hundred forty-two thousand, two hundred one".