539199221 has 4 divisors (see below), whose sum is σ = 588217344. Its totient is φ = 490181100.

The previous prime is 539199211. The next prime is 539199223. The reversal of 539199221 is 122991935.

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 539199221 - 2¹⁴ = 539182837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539199223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24509045 + ... + 24509066.

It is an arithmetic number, because the mean of its divisors is an integer number (147054336).

Almost surely, 2^539199221 is an apocalyptic number.

It is an amenable number.

539199221 is a deficient number, since it is larger than the sum of its proper divisors (49018123).

539199221 is a wasteful number, since it uses less digits than its factorization.

539199221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49018122.

The product of its digits is 43740, while the sum is 41.

The square root of 539199221 is about 23220.6636640730. The cubic root of 539199221 is about 813.9225583187.

The spelling of 539199221 in words is "five hundred thirty-nine million, one hundred ninety-nine thousand, two hundred twenty-one".