1264567061 has 2 divisors, whose sum is σ = 1264567062. Its totient is φ = 1264567060.

The previous prime is 1264567043. The next prime is 1264567081. The reversal of 1264567061 is 1607654621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752404900 + 512162161 = 27430^2 + 22631^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264567061 - 2⁶ = 1264566997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264567081) 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, 632283530 + 632283531.

It is an arithmetic number, because the mean of its divisors is an integer number (632283531).

Almost surely, 2^1264567061 is an apocalyptic number.

It is an amenable number.

1264567061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264567061 is an equidigital number, since it uses as much as digits as its factorization.

1264567061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1264567061 is about 35560.7516934049. The cubic root of 1264567061 is about 1081.3856987362.

The spelling of 1264567061 in words is "one billion, two hundred sixty-four million, five hundred sixty-seven thousand, sixty-one".