136394201 has 2 divisors, whose sum is σ = 136394202. Its totient is φ = 136394200.

The previous prime is 136394197. The next prime is 136394233. The reversal of 136394201 is 102493631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121771225 + 14622976 = 11035^2 + 3824^2 .

It is an emirp because it is prime and its reverse (102493631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136394201 - 2² = 136394197 is a prime.

It is not a weakly prime, because it can be changed into another prime (136394101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68197100 + 68197101.

It is an arithmetic number, because the mean of its divisors is an integer number (68197101).

Almost surely, 2^136394201 is an apocalyptic number.

It is an amenable number.

136394201 is a deficient number, since it is larger than the sum of its proper divisors (1).

136394201 is an equidigital number, since it uses as much as digits as its factorization.

136394201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 136394201 is about 11678.7927886404. The cubic root of 136394201 is about 514.7527024589.

The spelling of 136394201 in words is "one hundred thirty-six million, three hundred ninety-four thousand, two hundred one".