136443743 has 2 divisors, whose sum is σ = 136443744. Its totient is φ = 136443742.

The previous prime is 136443721. The next prime is 136443757. The reversal of 136443743 is 347344631.

It is a strong prime.

It is an emirp because it is prime and its reverse (347344631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136443743 - 2⁸ = 136443487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136443793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68221871 + 68221872.

It is an arithmetic number, because the mean of its divisors is an integer number (68221872).

Almost surely, 2^136443743 is an apocalyptic number.

136443743 is a deficient number, since it is larger than the sum of its proper divisors (1).

136443743 is an equidigital number, since it uses as much as digits as its factorization.

136443743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 35.

The square root of 136443743 is about 11680.9136200898. The cubic root of 136443743 is about 514.8150188701.

The spelling of 136443743 in words is "one hundred thirty-six million, four hundred forty-three thousand, seven hundred forty-three".