2943254221 has 4 divisors (see below), whose sum is σ = 2943400032. Its totient is φ = 2943108412.

The previous prime is 2943254203. The next prime is 2943254273. The reversal of 2943254221 is 1224523492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2943254221 - 2¹¹ = 2943252173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943254201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36601 + ... + 85006.

It is an arithmetic number, because the mean of its divisors is an integer number (735850008).

Almost surely, 2^2943254221 is an apocalyptic number.

It is an amenable number.

2943254221 is a deficient number, since it is larger than the sum of its proper divisors (145811).

2943254221 is a wasteful number, since it uses less digits than its factorization.

2943254221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145810.

The product of its digits is 34560, while the sum is 34.

The square root of 2943254221 is about 54251.7669850485. The cubic root of 2943254221 is about 1433.0981163625.

The spelling of 2943254221 in words is "two billion, nine hundred forty-three million, two hundred fifty-four thousand, two hundred twenty-one".