1264510601 has 2 divisors, whose sum is σ = 1264510602. Its totient is φ = 1264510600.

The previous prime is 1264510549. The next prime is 1264510619. The reversal of 1264510601 is 1060154621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722319376 + 542191225 = 26876^2 + 23285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264510601 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1264510901) 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, 632255300 + 632255301.

It is an arithmetic number, because the mean of its divisors is an integer number (632255301).

Almost surely, 2^1264510601 is an apocalyptic number.

It is an amenable number.

1264510601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264510601 is an equidigital number, since it uses as much as digits as its factorization.

1264510601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1264510601 is about 35559.9578318085. The cubic root of 1264510601 is about 1081.3696047050.

The spelling of 1264510601 in words is "one billion, two hundred sixty-four million, five hundred ten thousand, six hundred one".