1103453 has 8 divisors (see below), whose sum is σ = 1258488. Its totient is φ = 958464.

The previous prime is 1103449. The next prime is 1103461. The reversal of 1103453 is 3543011.

1103453 = T₁₈₂ + T₁₈₃ + ... + T₂₃₂.

It can be written as a sum of positive squares in 4 ways, for example, as 77284 + 1026169 = 278^2 + 1013^2 .

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

It is not a de Polignac number, because 1103453 - 2² = 1103449 is a prime.

It is a super-3 number, since 3×1103453³ = 4030721333281622031, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam 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 (1103483) by changing a digit.

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, 2276 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (157311).

2^1103453 is an apocalyptic number.

1103453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1103453 is a deficient number, since it is larger than the sum of its proper divisors (155035).

1103453 is a wasteful number, since it uses less digits than its factorization.

1103453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1103453 is about 1050.4537114980. The cubic root of 1103453 is about 103.3359127579.

Adding to 1103453 its reverse (3543011), we get a palindrome (4646464).

The spelling of 1103453 in words is "one million, one hundred three thousand, four hundred fifty-three".