136204843 has 2 divisors, whose sum is σ = 136204844. Its totient is φ = 136204842.

The previous prime is 136204823. The next prime is 136204891. The reversal of 136204843 is 348402631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136204843 - 2⁵ = 136204811 is a prime.

It is not a weakly prime, because it can be changed into another prime (136204823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68102421 + 68102422.

It is an arithmetic number, because the mean of its divisors is an integer number (68102422).

Almost surely, 2^136204843 is an apocalyptic number.

136204843 is a deficient number, since it is larger than the sum of its proper divisors (1).

136204843 is an equidigital number, since it uses as much as digits as its factorization.

136204843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 136204843 is about 11670.6830562740. The cubic root of 136204843 is about 514.5143793146.

The spelling of 136204843 in words is "one hundred thirty-six million, two hundred four thousand, eight hundred forty-three".