1148465861 has 2 divisors, whose sum is σ = 1148465862. Its totient is φ = 1148465860.

The previous prime is 1148465819. The next prime is 1148465869. The reversal of 1148465861 is 1685648411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1056900100 + 91565761 = 32510^2 + 9569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148465861 - 2⁶ = 1148465797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148465869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574232930 + 574232931.

It is an arithmetic number, because the mean of its divisors is an integer number (574232931).

Almost surely, 2^1148465861 is an apocalyptic number.

It is an amenable number.

1148465861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148465861 is an equidigital number, since it uses as much as digits as its factorization.

1148465861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 1148465861 is about 33889.0227212294. The cubic root of 1148465861 is about 1047.2234613847.

The spelling of 1148465861 in words is "one billion, one hundred forty-eight million, four hundred sixty-five thousand, eight hundred sixty-one".