531144667 has 2 divisors, whose sum is σ = 531144668. Its totient is φ = 531144666.

The previous prime is 531144637. The next prime is 531144721. The reversal of 531144667 is 766441135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531144667 - 2¹⁵ = 531111899 is a prime.

It is a super-2 number, since 2×531144667² = 564229314565081778, which contains 22 as substring.

It is equal to p_27907543 and since 531144667 and 27907543 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (531144637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265572333 + 265572334.

It is an arithmetic number, because the mean of its divisors is an integer number (265572334).

Almost surely, 2^531144667 is an apocalyptic number.

531144667 is a deficient number, since it is larger than the sum of its proper divisors (1).

531144667 is an equidigital number, since it uses as much as digits as its factorization.

531144667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 531144667 is about 23046.5760363660. The cubic root of 531144667 is about 809.8494192472.

The spelling of 531144667 in words is "five hundred thirty-one million, one hundred forty-four thousand, six hundred sixty-seven".