1312248097 has 2 divisors, whose sum is σ = 1312248098. Its totient is φ = 1312248096.

The previous prime is 1312248079. The next prime is 1312248101. The reversal of 1312248097 is 7908422131.

Together with previous prime (1312248079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 954130321 + 358117776 = 30889^2 + 18924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312248097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1316248097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656124048 + 656124049.

It is an arithmetic number, because the mean of its divisors is an integer number (656124049).

Almost surely, 2^1312248097 is an apocalyptic number.

It is an amenable number.

1312248097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312248097 is an equidigital number, since it uses as much as digits as its factorization.

1312248097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1312248097 is about 36224.9651069535. The cubic root of 1312248097 is about 1094.8097351564.

The spelling of 1312248097 in words is "one billion, three hundred twelve million, two hundred forty-eight thousand, ninety-seven".