2235974921 has 2 divisors, whose sum is σ = 2235974922. Its totient is φ = 2235974920.

The previous prime is 2235974911. The next prime is 2235974933. The reversal of 2235974921 is 1294795322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2177528896 + 58446025 = 46664^2 + 7645^2 .

It is a cyclic number.

It is not a de Polignac number, because 2235974921 - 2¹⁰ = 2235973897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2235974911) 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, 1117987460 + 1117987461.

It is an arithmetic number, because the mean of its divisors is an integer number (1117987461).

Almost surely, 2^2235974921 is an apocalyptic number.

It is an amenable number.

2235974921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235974921 is an equidigital number, since it uses as much as digits as its factorization.

2235974921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 2235974921 is about 47286.0964872340. The cubic root of 2235974921 is about 1307.6423458365.

The spelling of 2235974921 in words is "two billion, two hundred thirty-five million, nine hundred seventy-four thousand, nine hundred twenty-one".