530183921 has 4 divisors (see below), whose sum is σ = 530587200. Its totient is φ = 529780644.

The previous prime is 530183891. The next prime is 530183939. The reversal of 530183921 is 129381035.

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 530183921 - 2²⁶ = 463075057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530183321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199661 + ... + 202298.

It is an arithmetic number, because the mean of its divisors is an integer number (132646800).

Almost surely, 2^530183921 is an apocalyptic number.

It is an amenable number.

530183921 is a deficient number, since it is larger than the sum of its proper divisors (403279).

530183921 is a wasteful number, since it uses less digits than its factorization.

530183921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403278.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 530183921 is about 23025.7230288215. The cubic root of 530183921 is about 809.3608334725.

The spelling of 530183921 in words is "five hundred thirty million, one hundred eighty-three thousand, nine hundred twenty-one".