1005232531 has 2 divisors, whose sum is σ = 1005232532. Its totient is φ = 1005232530.

The previous prime is 1005232489. The next prime is 1005232583. The reversal of 1005232531 is 1352325001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005232531 - 2¹¹ = 1005230483 is a prime.

It is a super-2 number, since 2×1005232531² = 2020984882761331922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005232231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502616265 + 502616266.

It is an arithmetic number, because the mean of its divisors is an integer number (502616266).

Almost surely, 2^1005232531 is an apocalyptic number.

1005232531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005232531 is an equidigital number, since it uses as much as digits as its factorization.

1005232531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1005232531 is about 31705.4022368429. The cubic root of 1005232531 is about 1001.7411436593.

Adding to 1005232531 its reverse (1352325001), we get a palindrome (2357557532).

The spelling of 1005232531 in words is "one billion, five million, two hundred thirty-two thousand, five hundred thirty-one".