9132001721 has 2 divisors, whose sum is σ = 9132001722. Its totient is φ = 9132001720.

The previous prime is 9132001717. The next prime is 9132001771. The reversal of 9132001721 is 1271002319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5382276496 + 3749725225 = 73364^2 + 61235^2 .

It is an emirp because it is prime and its reverse (1271002319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9132001721 - 2² = 9132001717 is a prime.

It is not a weakly prime, because it can be changed into another prime (9132001771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4566000860 + 4566000861.

It is an arithmetic number, because the mean of its divisors is an integer number (4566000861).

Almost surely, 2^9132001721 is an apocalyptic number.

It is an amenable number.

9132001721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9132001721 is an equidigital number, since it uses as much as digits as its factorization.

9132001721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 9132001721 is about 95561.5075278744. The cubic root of 9132001721 is about 2090.2039376555.

The spelling of 9132001721 in words is "nine billion, one hundred thirty-two million, one thousand, seven hundred twenty-one".