534173521 has 4 divisors (see below), whose sum is σ = 610484032. Its totient is φ = 457863012.

The previous prime is 534173509. The next prime is 534173527. The reversal of 534173521 is 125371435.

It is a happy number.

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 534173521 - 2⁵ = 534173489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534173527) 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, 38155245 + ... + 38155258.

It is an arithmetic number, because the mean of its divisors is an integer number (152621008).

Almost surely, 2^534173521 is an apocalyptic number.

It is an amenable number.

534173521 is a deficient number, since it is larger than the sum of its proper divisors (76310511).

534173521 is an equidigital number, since it uses as much as digits as its factorization.

534173521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76310510.

The product of its digits is 12600, while the sum is 31.

The square root of 534173521 is about 23112.1942056569. The cubic root of 534173521 is about 811.3858919097.

The spelling of 534173521 in words is "five hundred thirty-four million, one hundred seventy-three thousand, five hundred twenty-one".