531213667 has 2 divisors, whose sum is σ = 531213668. Its totient is φ = 531213666.

The previous prime is 531213653. The next prime is 531213673. The reversal of 531213667 is 766312135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531213667 - 2¹¹ = 531211619 is a prime.

It is not a weakly prime, because it can be changed into another prime (531213367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265606833 + 265606834.

It is an arithmetic number, because the mean of its divisors is an integer number (265606834).

Almost surely, 2^531213667 is an apocalyptic number.

531213667 is a deficient number, since it is larger than the sum of its proper divisors (1).

531213667 is an equidigital number, since it uses as much as digits as its factorization.

531213667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 531213667 is about 23048.0729563233. The cubic root of 531213667 is about 809.8844863980.

The spelling of 531213667 in words is "five hundred thirty-one million, two hundred thirteen thousand, six hundred sixty-seven".