1148609 has 12 divisors (see below), whose sum is σ = 1458288. Its totient is φ = 894600.

The previous prime is 1148599. The next prime is 1148621. The reversal of 1148609 is 9068411.

1148609 = 56² + 57² + ... + 153².

It is not a de Polignac number, because 1148609 - 2⁴ = 1148593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (121524).

2^1148609 is an apocalyptic number.

It is an amenable number.

1148609 is a deficient number, since it is larger than the sum of its proper divisors (309679).

1148609 is a wasteful number, since it uses less digits than its factorization.

1148609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1148609 is about 1071.7317761455. The cubic root of 1148609 is about 104.7266966463.

The spelling of 1148609 in words is "one million, one hundred forty-eight thousand, six hundred nine".