136238833 has 4 divisors (see below), whose sum is σ = 144252900. Its totient is φ = 128224768.

The previous prime is 136238827. The next prime is 136238899. The reversal of 136238833 is 338832631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338832631 = 263 ⋅1288337.

It can be written as a sum of positive squares in 2 ways, for example, as 105513984 + 30724849 = 10272^2 + 5543^2 .

It is a cyclic number.

It is not a de Polignac number, because 136238833 - 2⁹ = 136238321 is a prime.

It is a super-2 number, since 2×136238833² = 37122039234403778, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136238792 and 136238801.

It is not an unprimeable number, because it can be changed into a prime (136238633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4007008 + ... + 4007041.

It is an arithmetic number, because the mean of its divisors is an integer number (36063225).

Almost surely, 2^136238833 is an apocalyptic number.

It is an amenable number.

136238833 is a deficient number, since it is larger than the sum of its proper divisors (8014067).

136238833 is an equidigital number, since it uses as much as digits as its factorization.

136238833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014066.

The product of its digits is 62208, while the sum is 37.

The square root of 136238833 is about 11672.1391784026. The cubic root of 136238833 is about 514.5571748785.

The spelling of 136238833 in words is "one hundred thirty-six million, two hundred thirty-eight thousand, eight hundred thirty-three".