531041999 has 4 divisors (see below), whose sum is σ = 531153840. Its totient is φ = 530930160.

The previous prime is 531041993. The next prime is 531042013. The reversal of 531041999 is 999140135.

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

It is a cyclic number.

It is not a de Polignac number, because 531041999 - 2²⁰ = 529993423 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 (531041993) 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, 48467 + ... + 58404.

It is an arithmetic number, because the mean of its divisors is an integer number (132788460).

Almost surely, 2^531041999 is an apocalyptic number.

531041999 is a deficient number, since it is larger than the sum of its proper divisors (111841).

531041999 is a wasteful number, since it uses less digits than its factorization.

531041999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111840.

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

The square root of 531041999 is about 23044.3485262656. The cubic root of 531041999 is about 809.7972357379.

The spelling of 531041999 in words is "five hundred thirty-one million, forty-one thousand, nine hundred ninety-nine".