136523441 has 2 divisors, whose sum is σ = 136523442. Its totient is φ = 136523440.

The previous prime is 136523381. The next prime is 136523459. The reversal of 136523441 is 144325631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83539600 + 52983841 = 9140^2 + 7279^2 .

It is a cyclic number.

It is not a de Polignac number, because 136523441 - 2¹⁴ = 136507057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136523741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68261720 + 68261721.

It is an arithmetic number, because the mean of its divisors is an integer number (68261721).

Almost surely, 2^136523441 is an apocalyptic number.

It is an amenable number.

136523441 is a deficient number, since it is larger than the sum of its proper divisors (1).

136523441 is an equidigital number, since it uses as much as digits as its factorization.

136523441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 136523441 is about 11684.3245846733. The cubic root of 136523441 is about 514.9152353658.

The spelling of 136523441 in words is "one hundred thirty-six million, five hundred twenty-three thousand, four hundred forty-one".