136703261 has 2 divisors, whose sum is σ = 136703262. Its totient is φ = 136703260.

The previous prime is 136703227. The next prime is 136703267. The reversal of 136703261 is 162307631.

136703261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109725625 + 26977636 = 10475^2 + 5194^2 .

It is an emirp because it is prime and its reverse (162307631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136703261 - 2¹⁴ = 136686877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136703267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68351630 + 68351631.

It is an arithmetic number, because the mean of its divisors is an integer number (68351631).

Almost surely, 2^136703261 is an apocalyptic number.

It is an amenable number.

136703261 is a deficient number, since it is larger than the sum of its proper divisors (1).

136703261 is an equidigital number, since it uses as much as digits as its factorization.

136703261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 136703261 is about 11692.0169774081. The cubic root of 136703261 is about 515.1412073907.

The spelling of 136703261 in words is "one hundred thirty-six million, seven hundred three thousand, two hundred sixty-one".