1264450051 has 2 divisors, whose sum is σ = 1264450052. Its totient is φ = 1264450050.

The previous prime is 1264450049. The next prime is 1264450073. The reversal of 1264450051 is 1500544621.

It is a weak prime.

It is an emirp because it is prime and its reverse (1500544621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1264450051 - 2¹ = 1264450049 is a prime.

Together with 1264450049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1264450081) 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, 632225025 + 632225026.

It is an arithmetic number, because the mean of its divisors is an integer number (632225026).

Almost surely, 2^1264450051 is an apocalyptic number.

1264450051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264450051 is an equidigital number, since it uses as much as digits as its factorization.

1264450051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1264450051 is about 35559.1064426540. The cubic root of 1264450051 is about 1081.3523442790.

Adding to 1264450051 its reverse (1500544621), we get a palindrome (2764994672).

The spelling of 1264450051 in words is "one billion, two hundred sixty-four million, four hundred fifty thousand, fifty-one".