136866833 has 2 divisors, whose sum is σ = 136866834. Its totient is φ = 136866832.

The previous prime is 136866799. The next prime is 136866839. The reversal of 136866833 is 338668631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132894784 + 3972049 = 11528^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 136866833 - 2⁸ = 136866577 is a prime.

It is not a weakly prime, because it can be changed into another prime (136866839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68433416 + 68433417.

It is an arithmetic number, because the mean of its divisors is an integer number (68433417).

Almost surely, 2^136866833 is an apocalyptic number.

It is an amenable number.

136866833 is a deficient number, since it is larger than the sum of its proper divisors (1).

136866833 is an equidigital number, since it uses as much as digits as its factorization.

136866833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 136866833 is about 11699.0099153732. The cubic root of 136866833 is about 515.3465892062.

The spelling of 136866833 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, eight hundred thirty-three".