136343843 has 2 divisors, whose sum is σ = 136343844. Its totient is φ = 136343842.

The previous prime is 136343827. The next prime is 136343863. The reversal of 136343843 is 348343631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136343843 - 2⁴ = 136343827 is a prime.

It is not a weakly prime, because it can be changed into another prime (136343813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68171921 + 68171922.

It is an arithmetic number, because the mean of its divisors is an integer number (68171922).

Almost surely, 2^136343843 is an apocalyptic number.

136343843 is a deficient number, since it is larger than the sum of its proper divisors (1).

136343843 is an equidigital number, since it uses as much as digits as its factorization.

136343843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 35.

The square root of 136343843 is about 11676.6366304686. The cubic root of 136343843 is about 514.6893441752.

The spelling of 136343843 in words is "one hundred thirty-six million, three hundred forty-three thousand, eight hundred forty-three".