136984873 has 2 divisors, whose sum is σ = 136984874. Its totient is φ = 136984872.

The previous prime is 136984847. The next prime is 136984907. The reversal of 136984873 is 378489631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135792409 + 1192464 = 11653^2 + 1092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136984873 is a prime.

It is a super-2 number, since 2×136984873² = 37529710861652258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136984373) 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, 68492436 + 68492437.

It is an arithmetic number, because the mean of its divisors is an integer number (68492437).

Almost surely, 2^136984873 is an apocalyptic number.

It is an amenable number.

136984873 is a deficient number, since it is larger than the sum of its proper divisors (1).

136984873 is an equidigital number, since it uses as much as digits as its factorization.

136984873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 136984873 is about 11704.0536994667. The cubic root of 136984873 is about 515.4946991866.

The spelling of 136984873 in words is "one hundred thirty-six million, nine hundred eighty-four thousand, eight hundred seventy-three".