136740859 has 2 divisors, whose sum is σ = 136740860. Its totient is φ = 136740858.

The previous prime is 136740841. The next prime is 136740893. The reversal of 136740859 is 958047631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136740859 - 2¹³ = 136732667 is a prime.

It is not a weakly prime, because it can be changed into another prime (136740839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68370429 + 68370430.

It is an arithmetic number, because the mean of its divisors is an integer number (68370430).

Almost surely, 2^136740859 is an apocalyptic number.

136740859 is a deficient number, since it is larger than the sum of its proper divisors (1).

136740859 is an equidigital number, since it uses as much as digits as its factorization.

136740859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 136740859 is about 11693.6247160579. The cubic root of 136740859 is about 515.1884301212.

The spelling of 136740859 in words is "one hundred thirty-six million, seven hundred forty thousand, eight hundred fifty-nine".