1148289913 has 2 divisors, whose sum is σ = 1148289914. Its totient is φ = 1148289912.

The previous prime is 1148289851. The next prime is 1148289929. The reversal of 1148289913 is 3199828411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 830131344 + 318158569 = 28812^2 + 17837^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148289913 - 2¹³ = 1148281721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1148289943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574144956 + 574144957.

It is an arithmetic number, because the mean of its divisors is an integer number (574144957).

Almost surely, 2^1148289913 is an apocalyptic number.

It is an amenable number.

1148289913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148289913 is an equidigital number, since it uses as much as digits as its factorization.

1148289913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 46.

The square root of 1148289913 is about 33886.4266779488. The cubic root of 1148289913 is about 1047.1699795210.

The spelling of 1148289913 in words is "one billion, one hundred forty-eight million, two hundred eighty-nine thousand, nine hundred thirteen".