4125493221 has 4 divisors (see below), whose sum is σ = 5500657632. Its totient is φ = 2750328812.

The previous prime is 4125493201. The next prime is 4125493243. The reversal of 4125493221 is 1223945214.

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 4125493221 - 2¹⁴ = 4125476837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125493201) 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, 687582201 + ... + 687582206.

It is an arithmetic number, because the mean of its divisors is an integer number (1375164408).

Almost surely, 2^4125493221 is an apocalyptic number.

It is an amenable number.

4125493221 is a deficient number, since it is larger than the sum of its proper divisors (1375164411).

4125493221 is a wasteful number, since it uses less digits than its factorization.

4125493221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375164410.

The product of its digits is 17280, while the sum is 33.

The square root of 4125493221 is about 64230.0024988323. The cubic root of 4125493221 is about 1603.8310825834.

The spelling of 4125493221 in words is "four billion, one hundred twenty-five million, four hundred ninety-three thousand, two hundred twenty-one".