121752647333 has 16 divisors (see below), whose sum is σ = 125024071536. Its totient is φ = 118519564800.

The previous prime is 121752647309. The next prime is 121752647339. The reversal of 121752647333 is 333746257121.

It can be written as a sum of positive squares in 8 ways, for example, as 1772157409 + 119980489924 = 42097^2 + 346382^2 .

It is a cyclic number.

It is not a de Polignac number, because 121752647333 - 2⁸ = 121752647077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752647339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5822585 + ... + 5843457.

It is an arithmetic number, because the mean of its divisors is an integer number (7814004471).

Almost surely, 2^121752647333 is an apocalyptic number.

It is an amenable number.

121752647333 is a deficient number, since it is larger than the sum of its proper divisors (3271424203).

121752647333 is a wasteful number, since it uses less digits than its factorization.

121752647333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784.

The product of its digits is 635040, while the sum is 44.

The spelling of 121752647333 in words is "one hundred twenty-one billion, seven hundred fifty-two million, six hundred forty-seven thousand, three hundred thirty-three".