103443481 has 4 divisors (see below), whose sum is σ = 104689872. Its totient is φ = 102197092.

The previous prime is 103443479. The next prime is 103443541. The reversal of 103443481 is 184344301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184344301 = 257 ⋅717293.

It is a cyclic number.

It is not a de Polignac number, because 103443481 - 2¹ = 103443479 is a prime.

It is a super-2 number, since 2×103443481² = 21401107522794722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103443401) 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, 623071 + ... + 623236.

It is an arithmetic number, because the mean of its divisors is an integer number (26172468).

Almost surely, 2^103443481 is an apocalyptic number.

It is an amenable number.

103443481 is a deficient number, since it is larger than the sum of its proper divisors (1246391).

103443481 is an equidigital number, since it uses as much as digits as its factorization.

103443481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246390.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 103443481 is about 10170.7168380601. The cubic root of 103443481 is about 469.4266147910.

Adding to 103443481 its reverse (184344301), we get a palindrome (287787782).

The spelling of 103443481 in words is "one hundred three million, four hundred forty-three thousand, four hundred eighty-one".