1264265087 has 2 divisors, whose sum is σ = 1264265088. Its totient is φ = 1264265086.

The previous prime is 1264265029. The next prime is 1264265089. The reversal of 1264265087 is 7805624621.

It is a strong prime.

It is an emirp because it is prime and its reverse (7805624621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1264265087 - 2¹⁶ = 1264199551 is a prime.

Together with 1264265089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264265089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632132543 + 632132544.

It is an arithmetic number, because the mean of its divisors is an integer number (632132544).

Almost surely, 2^1264265087 is an apocalyptic number.

1264265087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264265087 is an equidigital number, since it uses as much as digits as its factorization.

1264265087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1264265087 is about 35556.5055510240. The cubic root of 1264265087 is about 1081.2996148973.

The spelling of 1264265087 in words is "one billion, two hundred sixty-four million, two hundred sixty-five thousand, eighty-seven".