1298311627 has 2 divisors, whose sum is σ = 1298311628. Its totient is φ = 1298311626.

The previous prime is 1298311603. The next prime is 1298311633. The reversal of 1298311627 is 7261138921.

It is a strong prime.

It is an emirp because it is prime and its reverse (7261138921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1298311627 - 2⁷ = 1298311499 is a prime.

It is a super-2 number, since 2×1298311627² = 3371226161606774258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1298311627.

It is not a weakly prime, because it can be changed into another prime (1298311687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649155813 + 649155814.

It is an arithmetic number, because the mean of its divisors is an integer number (649155814).

Almost surely, 2^1298311627 is an apocalyptic number.

1298311627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298311627 is an equidigital number, since it uses as much as digits as its factorization.

1298311627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 1298311627 is about 36032.0916267707. The cubic root of 1298311627 is about 1090.9201967592.

The spelling of 1298311627 in words is "one billion, two hundred ninety-eight million, three hundred eleven thousand, six hundred twenty-seven".