1296632461 has 2 divisors, whose sum is σ = 1296632462. Its totient is φ = 1296632460.

The previous prime is 1296632437. The next prime is 1296632489. The reversal of 1296632461 is 1642366921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149616836 + 147015625 = 33906^2 + 12125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1296632461 - 2¹⁵ = 1296599693 is a prime.

It is a super-3 number, since 3×1296632461³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1296632401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648316230 + 648316231.

It is an arithmetic number, because the mean of its divisors is an integer number (648316231).

Almost surely, 2^1296632461 is an apocalyptic number.

It is an amenable number.

1296632461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296632461 is an equidigital number, since it uses as much as digits as its factorization.

1296632461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 1296632461 is about 36008.7831091249. The cubic root of 1296632461 is about 1090.4496814721.

The spelling of 1296632461 in words is "one billion, two hundred ninety-six million, six hundred thirty-two thousand, four hundred sixty-one".