264231533 has 2 divisors, whose sum is σ = 264231534. Its totient is φ = 264231532.

The previous prime is 264231503. The next prime is 264231547. The reversal of 264231533 is 335132462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242674084 + 21557449 = 15578^2 + 4643^2 .

It is a cyclic number.

It is not a de Polignac number, because 264231533 - 2⁸ = 264231277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264231496 and 264231505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264231503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132115766 + 132115767.

It is an arithmetic number, because the mean of its divisors is an integer number (132115767).

Almost surely, 2^264231533 is an apocalyptic number.

It is an amenable number.

264231533 is a deficient number, since it is larger than the sum of its proper divisors (1).

264231533 is an equidigital number, since it uses as much as digits as its factorization.

264231533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 29.

The square root of 264231533 is about 16255.2001833260. The cubic root of 264231533 is about 641.6943490915.

Adding to 264231533 its reverse (335132462), we get a palindrome (599363995).

The spelling of 264231533 in words is "two hundred sixty-four million, two hundred thirty-one thousand, five hundred thirty-three".