103345553 has 4 divisors (see below), whose sum is σ = 103366068. Its totient is φ = 103325040.

The previous prime is 103345549. The next prime is 103345573. The reversal of 103345553 is 355543301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355543301 = 131 ⋅2714071.

It can be written as a sum of positive squares in 2 ways, for example, as 10647169 + 92698384 = 3263^2 + 9628^2 .

It is a cyclic number.

It is not a de Polignac number, because 103345553 - 2² = 103345549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103345573) 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 3 ways as a sum of consecutive naturals, for example, 3083 + ... + 14703.

It is an arithmetic number, because the mean of its divisors is an integer number (25841517).

Almost surely, 2^103345553 is an apocalyptic number.

It is an amenable number.

103345553 is a deficient number, since it is larger than the sum of its proper divisors (20515).

103345553 is an equidigital number, since it uses as much as digits as its factorization.

103345553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 103345553 is about 10165.9014848660. The cubic root of 103345553 is about 469.2784355694.

Adding to 103345553 its reverse (355543301), we get a palindrome (458888854).

The spelling of 103345553 in words is "one hundred three million, three hundred forty-five thousand, five hundred fifty-three".