1153005 has 32 divisors (see below), whose sum is σ = 2150400. Its totient is φ = 516672.

The previous prime is 1153001. The next prime is 1153007. The reversal of 1153005 is 5003511.

It is not a de Polignac number, because 1153005 - 2² = 1153001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1153005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153001) 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 in 31 ways as a sum of consecutive naturals, for example, 8226 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2^1153005 is an apocalyptic number.

1153005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153005 is a deficient number, since it is larger than the sum of its proper divisors (997395).

1153005 is a wasteful number, since it uses less digits than its factorization.

1153005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 1153005 is about 1073.7807038683. The cubic root of 1153005 is about 104.8601312262.

1153005 divided by its sum of digits (15) gives a palindrome (76867).

Adding to 1153005 its reverse (5003511), we get a palindrome (6156516).

The spelling of 1153005 in words is "one million, one hundred fifty-three thousand, five".