1153103 has 4 divisors (see below), whose sum is σ = 1317840. Its totient is φ = 988368.

The previous prime is 1153099. The next prime is 1153109. The reversal of 1153103 is 3013511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013511 = 1069 ⋅2819.

It is a cyclic number.

It is not a de Polignac number, because 1153103 - 2² = 1153099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82358 + ... + 82371.

It is an arithmetic number, because the mean of its divisors is an integer number (329460).

2^1153103 is an apocalyptic number.

1153103 is a deficient number, since it is larger than the sum of its proper divisors (164737).

1153103 is an equidigital number, since it uses as much as digits as its factorization.

1153103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164736.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 1153103 is about 1073.8263360525. The cubic root of 1153103 is about 104.8631020146.

Adding to 1153103 its reverse (3013511), we get a palindrome (4166614).

The spelling of 1153103 in words is "one million, one hundred fifty-three thousand, one hundred three".