526381231 has 2 divisors, whose sum is σ = 526381232. Its totient is φ = 526381230.

The previous prime is 526381223. The next prime is 526381241. The reversal of 526381231 is 132183625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 526381231 - 2³ = 526381223 is a prime.

It is a super-2 number, since 2×526381231² = 554154400698150722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 526381193 and 526381202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526381211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263190615 + 263190616.

It is an arithmetic number, because the mean of its divisors is an integer number (263190616).

Almost surely, 2^526381231 is an apocalyptic number.

526381231 is a deficient number, since it is larger than the sum of its proper divisors (1).

526381231 is an equidigital number, since it uses as much as digits as its factorization.

526381231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 526381231 is about 22942.9996077235. Note that the first 3 decimals coincide. The cubic root of 526381231 is about 807.4211694142.

The spelling of 526381231 in words is "five hundred twenty-six million, three hundred eighty-one thousand, two hundred thirty-one".