136333021 has 8 divisors (see below), whose sum is σ = 148896288. Its totient is φ = 123798000.

The previous prime is 136333019. The next prime is 136333027. The reversal of 136333021 is 120333631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136333021 - 2¹ = 136333019 is a prime.

It is a super-2 number, since 2×136333021² = 37173385229972882, 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 = 136332983 and 136333001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136333027) 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 in 7 ways as a sum of consecutive naturals, for example, 3766 + ... + 16936.

It is an arithmetic number, because the mean of its divisors is an integer number (18612036).

Almost surely, 2^136333021 is an apocalyptic number.

136333021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136333021 is a deficient number, since it is larger than the sum of its proper divisors (12563267).

136333021 is a wasteful number, since it uses less digits than its factorization.

136333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14123.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 136333021 is about 11676.1732172831. The cubic root of 136333021 is about 514.6757263608.

Adding to 136333021 its reverse (120333631), we get a palindrome (256666652).

The spelling of 136333021 in words is "one hundred thirty-six million, three hundred thirty-three thousand, twenty-one".