1296072101 has 2 divisors, whose sum is σ = 1296072102. Its totient is φ = 1296072100.

The previous prime is 1296072083. The next prime is 1296072119. The reversal of 1296072101 is 1012706921.

It is a balanced prime because it is at equal distance from previous prime (1296072083) and next prime (1296072119).

It can be written as a sum of positive squares in only one way, i.e., 1296072001 + 100 = 36001^2 + 10^2 .

It is an emirp because it is prime and its reverse (1012706921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1296072101 is a prime.

It is a super-3 number, since 3×1296072101³ (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 (1296072131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648036050 + 648036051.

It is an arithmetic number, because the mean of its divisors is an integer number (648036051).

Almost surely, 2^1296072101 is an apocalyptic number.

It is an amenable number.

1296072101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296072101 is an equidigital number, since it uses as much as digits as its factorization.

1296072101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1296072101 is about 36001.0013888503. The cubic root of 1296072101 is about 1090.2925738756.

The spelling of 1296072101 in words is "one billion, two hundred ninety-six million, seventy-two thousand, one hundred one".