4120254421 has 4 divisors (see below), whose sum is σ = 4120459200. Its totient is φ = 4120049644.

The previous prime is 4120254407. The next prime is 4120254427. The reversal of 4120254421 is 1244520214.

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 4120254421 - 2¹⁹ = 4119730133 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 (4120254427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68461 + ... + 113698.

It is an arithmetic number, because the mean of its divisors is an integer number (1030114800).

Almost surely, 2^4120254421 is an apocalyptic number.

It is an amenable number.

4120254421 is a deficient number, since it is larger than the sum of its proper divisors (204779).

4120254421 is a wasteful number, since it uses less digits than its factorization.

4120254421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204778.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4120254421 is about 64189.2079792234. The cubic root of 4120254421 is about 1603.1519145538.

Adding to 4120254421 its reverse (1244520214), we get a palindrome (5364774635).

The spelling of 4120254421 in words is "four billion, one hundred twenty million, two hundred fifty-four thousand, four hundred twenty-one".