103553443 has 8 divisors (see below), whose sum is σ = 125308512. Its totient is φ = 83538816.

The previous prime is 103553407. The next prime is 103553447. The reversal of 103553443 is 344355301.

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

It is not a de Polignac number, because 103553443 - 2¹³ = 103545251 is a prime.

It is a super-3 number, since 3×103553443³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (103553447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434980 + ... + 435217.

It is an arithmetic number, because the mean of its divisors is an integer number (15663564).

Almost surely, 2^103553443 is an apocalyptic number.

103553443 is a deficient number, since it is larger than the sum of its proper divisors (21755069).

103553443 is an equidigital number, since it uses as much as digits as its factorization.

103553443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870221.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 103553443 is about 10176.1212158661. The cubic root of 103553443 is about 469.5928917733.

The spelling of 103553443 in words is "one hundred three million, five hundred fifty-three thousand, four hundred forty-three".