1275216097 has 2 divisors, whose sum is σ = 1275216098. Its totient is φ = 1275216096.

The previous prime is 1275216091. The next prime is 1275216109. The reversal of 1275216097 is 7906125721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1085768401 + 189447696 = 32951^2 + 13764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1275216097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275216091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637608048 + 637608049.

It is an arithmetic number, because the mean of its divisors is an integer number (637608049).

Almost surely, 2^1275216097 is an apocalyptic number.

It is an amenable number.

1275216097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275216097 is an equidigital number, since it uses as much as digits as its factorization.

1275216097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 1275216097 is about 35710.1679777623. The cubic root of 1275216097 is about 1084.4127006268.

The spelling of 1275216097 in words is "one billion, two hundred seventy-five million, two hundred sixteen thousand, ninety-seven".