1103953 has 4 divisors (see below), whose sum is σ = 1107108. Its totient is φ = 1100800.

The previous prime is 1103933. The next prime is 1103981. The reversal of 1103953 is 3593011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3593011 = 139 ⋅25849.

It can be written as a sum of positive squares in 2 ways, for example, as 1067089 + 36864 = 1033^2 + 192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103953 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103903) 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, 976 + ... + 1777.

It is an arithmetic number, because the mean of its divisors is an integer number (276777).

2^1103953 is an apocalyptic number.

It is an amenable number.

1103953 is a deficient number, since it is larger than the sum of its proper divisors (3155).

1103953 is an equidigital number, since it uses as much as digits as its factorization.

1103953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 1103953 is about 1050.6916769443. The cubic root of 1103953 is about 103.3515183627.

Adding to 1103953 its reverse (3593011), we get a palindrome (4696964).

The spelling of 1103953 in words is "one million, one hundred three thousand, nine hundred fifty-three".