531905201 has 4 divisors (see below), whose sum is σ = 535427904. Its totient is φ = 528382500.

The previous prime is 531905173. The next prime is 531905219. The reversal of 531905201 is 102509135.

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 531905201 - 2⁶ = 531905137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531902201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761125 + ... + 1761426.

It is an arithmetic number, because the mean of its divisors is an integer number (133856976).

Almost surely, 2^531905201 is an apocalyptic number.

It is an amenable number.

531905201 is a deficient number, since it is larger than the sum of its proper divisors (3522703).

531905201 is a wasteful number, since it uses less digits than its factorization.

531905201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522702.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 531905201 is about 23063.0700688352. The cubic root of 531905201 is about 810.2357699077.

The spelling of 531905201 in words is "five hundred thirty-one million, nine hundred five thousand, two hundred one".