1148605 has 8 divisors (see below), whose sum is σ = 1459512. Its totient is φ = 864768.

The previous prime is 1148599. The next prime is 1148621. The reversal of 1148605 is 5068411.

It can be written as a sum of positive squares in 4 ways, for example, as 248004 + 900601 = 498^2 + 949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1148605 - 2¹³ = 1140413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1148605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6672 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (182439).

2^1148605 is an apocalyptic number.

It is an amenable number.

1148605 is a deficient number, since it is larger than the sum of its proper divisors (310907).

1148605 is a wasteful number, since it uses less digits than its factorization.

1148605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1148605 is about 1071.7299100053. The cubic root of 1148605 is about 104.7265750769.

The spelling of 1148605 in words is "one million, one hundred forty-eight thousand, six hundred five".