531304413 has 16 divisors (see below), whose sum is σ = 713287680. Its totient is φ = 351770544.

The previous prime is 531304387. The next prime is 531304421. The reversal of 531304413 is 314403135.

It is a happy number.

It is not a de Polignac number, because 531304413 - 2¹² = 531300317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531304463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413470 + ... + 414752.

It is an arithmetic number, because the mean of its divisors is an integer number (44580480).

Almost surely, 2^531304413 is an apocalyptic number.

It is an amenable number.

531304413 is a deficient number, since it is larger than the sum of its proper divisors (181983267).

531304413 is a wasteful number, since it uses less digits than its factorization.

531304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 531304413 is about 23050.0414967089. The cubic root of 531304413 is about 809.9306006690.

Adding to 531304413 its reverse (314403135), we get a palindrome (845707548).

The spelling of 531304413 in words is "five hundred thirty-one million, three hundred four thousand, four hundred thirteen".