136030869 has 24 divisors (see below), whose sum is σ = 213496920. Its totient is φ = 82962432.

The previous prime is 136030841. The next prime is 136030933. The reversal of 136030869 is 968030631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 134792100 = 1113^2 + 11610^2 .

It is not a de Polignac number, because 136030869 - 2⁸ = 136030613 is a prime.

It is a super-2 number, since 2×136030869² = 37008794641790322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136030819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8077 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (8895705).

Almost surely, 2^136030869 is an apocalyptic number.

It is an amenable number.

136030869 is a deficient number, since it is larger than the sum of its proper divisors (77466051).

136030869 is a wasteful number, since it uses less digits than its factorization.

136030869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421 (or 10418 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 136030869 is about 11663.2272120541. The cubic root of 136030869 is about 514.2952234684.

The spelling of 136030869 in words is "one hundred thirty-six million, thirty thousand, eight hundred sixty-nine".