136867859 has 2 divisors, whose sum is σ = 136867860. Its totient is φ = 136867858.

The previous prime is 136867837. The next prime is 136867877. The reversal of 136867859 is 958768631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136867859 - 2²⁴ = 120090643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136867859.

It is not a weakly prime, because it can be changed into another prime (136837859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68433929 + 68433930.

It is an arithmetic number, because the mean of its divisors is an integer number (68433930).

Almost surely, 2^136867859 is an apocalyptic number.

136867859 is a deficient number, since it is larger than the sum of its proper divisors (1).

136867859 is an equidigital number, since it uses as much as digits as its factorization.

136867859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 136867859 is about 11699.0537651555. The cubic root of 136867859 is about 515.3478769404.

The spelling of 136867859 in words is "one hundred thirty-six million, eight hundred sixty-seven thousand, eight hundred fifty-nine".