1264332533 has 2 divisors, whose sum is σ = 1264332534. Its totient is φ = 1264332532.

The previous prime is 1264332499. The next prime is 1264332557. The reversal of 1264332533 is 3352334621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1108756804 + 155575729 = 33298^2 + 12473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264332533 - 2⁶ = 1264332469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264332533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264332583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632166266 + 632166267.

It is an arithmetic number, because the mean of its divisors is an integer number (632166267).

Almost surely, 2^1264332533 is an apocalyptic number.

It is an amenable number.

1264332533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264332533 is an equidigital number, since it uses as much as digits as its factorization.

1264332533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 32.

The square root of 1264332533 is about 35557.4539724092. The cubic root of 1264332533 is about 1081.3188429420.

The spelling of 1264332533 in words is "one billion, two hundred sixty-four million, three hundred thirty-two thousand, five hundred thirty-three".