534372221 has 4 divisors (see below), whose sum is σ = 534684444. Its totient is φ = 534060000.

The previous prime is 534372217. The next prime is 534372233. The reversal of 534372221 is 122273435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 205348900 + 329023321 = 14330^2 + 18139^2 .

It is a cyclic number.

It is not a de Polignac number, because 534372221 - 2² = 534372217 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 (534372121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153530 + ... + 156971.

It is an arithmetic number, because the mean of its divisors is an integer number (133671111).

Almost surely, 2^534372221 is an apocalyptic number.

It is an amenable number.

534372221 is a deficient number, since it is larger than the sum of its proper divisors (312223).

534372221 is a wasteful number, since it uses less digits than its factorization.

534372221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312222.

The product of its digits is 10080, while the sum is 29.

The square root of 534372221 is about 23116.4924026116. The cubic root of 534372221 is about 811.4864849344.

The spelling of 534372221 in words is "five hundred thirty-four million, three hundred seventy-two thousand, two hundred twenty-one".