1148999 has 2 divisors, whose sum is σ = 1149000. Its totient is φ = 1148998.

The previous prime is 1148989. The next prime is 1149007. The reversal of 1148999 is 9998411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1148999 - 2¹² = 1144903 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574499 + 574500.

It is an arithmetic number, because the mean of its divisors is an integer number (574500).

2^1148999 is an apocalyptic number.

1148999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148999 is an equidigital number, since it uses as much as digits as its factorization.

1148999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 41.

The square root of 1148999 is about 1071.9137092136. The cubic root of 1148999 is about 104.7385483121.

The spelling of 1148999 in words is "one million, one hundred forty-eight thousand, nine hundred ninety-nine".