136052261 has 2 divisors, whose sum is σ = 136052262. Its totient is φ = 136052260.

The previous prime is 136052243. The next prime is 136052281. The reversal of 136052261 is 162250631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132112036 + 3940225 = 11494^2 + 1985^2 .

It is an emirp because it is prime and its reverse (162250631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136052261 - 2⁶ = 136052197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136052261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136052221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68026130 + 68026131.

It is an arithmetic number, because the mean of its divisors is an integer number (68026131).

Almost surely, 2^136052261 is an apocalyptic number.

It is an amenable number.

136052261 is a deficient number, since it is larger than the sum of its proper divisors (1).

136052261 is an equidigital number, since it uses as much as digits as its factorization.

136052261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 136052261 is about 11664.1442463646. The cubic root of 136052261 is about 514.3221811406.

The spelling of 136052261 in words is "one hundred thirty-six million, fifty-two thousand, two hundred sixty-one".