136743499 has 2 divisors, whose sum is σ = 136743500. Its totient is φ = 136743498.

The previous prime is 136743493. The next prime is 136743557. The reversal of 136743499 is 994347631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136743499 - 2⁷ = 136743371 is a prime.

It is not a weakly prime, because it can be changed into another prime (136743493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68371749 + 68371750.

It is an arithmetic number, because the mean of its divisors is an integer number (68371750).

Almost surely, 2^136743499 is an apocalyptic number.

136743499 is a deficient number, since it is larger than the sum of its proper divisors (1).

136743499 is an equidigital number, since it uses as much as digits as its factorization.

136743499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 136743499 is about 11693.7375975348. The cubic root of 136743499 is about 515.1917456108.

The spelling of 136743499 in words is "one hundred thirty-six million, seven hundred forty-three thousand, four hundred ninety-nine".