2232751621 has 2 divisors, whose sum is σ = 2232751622. Its totient is φ = 2232751620.

The previous prime is 2232751613. The next prime is 2232751639. The reversal of 2232751621 is 1261572322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2159460900 + 73290721 = 46470^2 + 8561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232751621 - 2³ = 2232751613 is a prime.

It is a super-3 number, since 3×2232751621³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2232754621) 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 as a sum of consecutive naturals, namely, 1116375810 + 1116375811.

It is an arithmetic number, because the mean of its divisors is an integer number (1116375811).

Almost surely, 2^2232751621 is an apocalyptic number.

It is an amenable number.

2232751621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2232751621 is an equidigital number, since it uses as much as digits as its factorization.

2232751621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 2232751621 is about 47252.0012380428. The cubic root of 2232751621 is about 1307.0136938008.

The spelling of 2232751621 in words is "two billion, two hundred thirty-two million, seven hundred fifty-one thousand, six hundred twenty-one".