531491341 has 4 divisors (see below), whose sum is σ = 531544384. Its totient is φ = 531438300.

The previous prime is 531491339. The next prime is 531491371. The reversal of 531491341 is 143194135.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 531491341 - 2¹ = 531491339 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 (531491321) 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, 6405 + ... + 33226.

It is an arithmetic number, because the mean of its divisors is an integer number (132886096).

Almost surely, 2^531491341 is an apocalyptic number.

It is an amenable number.

531491341 is a deficient number, since it is larger than the sum of its proper divisors (53043).

531491341 is a wasteful number, since it uses less digits than its factorization.

531491341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53042.

The product of its digits is 6480, while the sum is 31.

The square root of 531491341 is about 23054.0959701308. The cubic root of 531491341 is about 810.0255750701.

The spelling of 531491341 in words is "five hundred thirty-one million, four hundred ninety-one thousand, three hundred forty-one".