732621121 has 2 divisors, whose sum is σ = 732621122. Its totient is φ = 732621120.

The previous prime is 732621119. The next prime is 732621187. The reversal of 732621121 is 121126237.

It is a happy number.

732621121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702250000 + 30371121 = 26500^2 + 5511^2 .

It is an emirp because it is prime and its reverse (121126237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 732621121 - 2¹ = 732621119 is a prime.

Together with 732621119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (732621191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366310560 + 366310561.

It is an arithmetic number, because the mean of its divisors is an integer number (366310561).

Almost surely, 2^732621121 is an apocalyptic number.

It is an amenable number.

732621121 is a deficient number, since it is larger than the sum of its proper divisors (1).

732621121 is an equidigital number, since it uses as much as digits as its factorization.

732621121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 732621121 is about 27066.9747293635. The cubic root of 732621121 is about 901.4877126860.

Adding to 732621121 its reverse (121126237), we get a palindrome (853747358).

The spelling of 732621121 in words is "seven hundred thirty-two million, six hundred twenty-one thousand, one hundred twenty-one".