136634033021 has 8 divisors (see below), whose sum is σ = 136813278840. Its totient is φ = 136454842368.

The previous prime is 136634032877. The next prime is 136634033033. The reversal of 136634033021 is 120330436631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7421822500 + 129212210521 = 86150^2 + 359461^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136634033021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136634033521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7541045 + ... + 7559141.

It is an arithmetic number, because the mean of its divisors is an integer number (17101659855).

Almost surely, 2^136634033021 is an apocalyptic number.

It is an amenable number.

136634033021 is a deficient number, since it is larger than the sum of its proper divisors (179245819).

136634033021 is an equidigital number, since it uses as much as digits as its factorization.

136634033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27583.

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 136634033021 its reverse (120330436631), we get a palindrome (256964469652).

The spelling of 136634033021 in words is "one hundred thirty-six billion, six hundred thirty-four million, thirty-three thousand, twenty-one".