4574138221 has 4 divisors (see below), whose sum is σ = 4575144352. Its totient is φ = 4573132092.

The previous prime is 4574138207. The next prime is 4574138243. The reversal of 4574138221 is 1228314754.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1228314754 = 2 ⋅614157377.

It is a cyclic number.

It is not a de Polignac number, because 4574138221 - 2⁵ = 4574138189 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 (4574138251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496215 + ... + 505348.

It is an arithmetic number, because the mean of its divisors is an integer number (1143786088).

Almost surely, 2^4574138221 is an apocalyptic number.

It is an amenable number.

4574138221 is a deficient number, since it is larger than the sum of its proper divisors (1006131).

4574138221 is a wasteful number, since it uses less digits than its factorization.

4574138221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006130.

The product of its digits is 53760, while the sum is 37.

The square root of 4574138221 is about 67632.3755386427. The cubic root of 4574138221 is about 1659.9809139190.

The spelling of 4574138221 in words is "four billion, five hundred seventy-four million, one hundred thirty-eight thousand, two hundred twenty-one".