1272101933 has 2 divisors, whose sum is σ = 1272101934. Its totient is φ = 1272101932.

The previous prime is 1272101923. The next prime is 1272101951. The reversal of 1272101933 is 3391012721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 791747044 + 480354889 = 28138^2 + 21917^2 .

It is an emirp because it is prime and its reverse (3391012721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1272101933 - 2³⁰ = 198360109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1272101896 and 1272101905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272101903) 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, 636050966 + 636050967.

It is an arithmetic number, because the mean of its divisors is an integer number (636050967).

Almost surely, 2^1272101933 is an apocalyptic number.

It is an amenable number.

1272101933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272101933 is an equidigital number, since it uses as much as digits as its factorization.

1272101933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1272101933 is about 35666.5380013256. The cubic root of 1272101933 is about 1083.5292446847.

The spelling of 1272101933 in words is "one billion, two hundred seventy-two million, one hundred one thousand, nine hundred thirty-three".