2234789521 has 2 divisors, whose sum is σ = 2234789522. Its totient is φ = 2234789520.

The previous prime is 2234789483. The next prime is 2234789527. The reversal of 2234789521 is 1259874322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1466890000 + 767899521 = 38300^2 + 27711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2234789521 - 2⁷ = 2234789393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2234789527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117394760 + 1117394761.

It is an arithmetic number, because the mean of its divisors is an integer number (1117394761).

Almost surely, 2^2234789521 is an apocalyptic number.

It is an amenable number.

2234789521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2234789521 is an equidigital number, since it uses as much as digits as its factorization.

2234789521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 2234789521 is about 47273.5604857514. The cubic root of 2234789521 is about 1307.4112232022.

The spelling of 2234789521 in words is "two billion, two hundred thirty-four million, seven hundred eighty-nine thousand, five hundred twenty-one".