4154055221 has 4 divisors (see below), whose sum is σ = 4155496992. Its totient is φ = 4152613452.

The previous prime is 4154055209. The next prime is 4154055239. The reversal of 4154055221 is 1225504514.

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 4154055221 - 2²² = 4149860917 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 (4154055251) 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, 716555 + ... + 722328.

It is an arithmetic number, because the mean of its divisors is an integer number (1038874248).

Almost surely, 2^4154055221 is an apocalyptic number.

It is an amenable number.

4154055221 is a deficient number, since it is larger than the sum of its proper divisors (1441771).

4154055221 is a wasteful number, since it uses less digits than its factorization.

4154055221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441770.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 4154055221 is about 64451.9605675421. The cubic root of 4154055221 is about 1607.5238380240.

Adding to 4154055221 its reverse (1225504514), we get a palindrome (5379559735).

The spelling of 4154055221 in words is "four billion, one hundred fifty-four million, fifty-five thousand, two hundred twenty-one".