103140443 has 16 divisors (see below), whose sum is σ = 124440000. Its totient is φ = 85349376.

The previous prime is 103140439. The next prime is 103140449. The reversal of 103140443 is 344041301.

It is a happy number.

It is not a de Polignac number, because 103140443 - 2² = 103140439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103140449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4763 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (7777500).

Almost surely, 2^103140443 is an apocalyptic number.

103140443 is a deficient number, since it is larger than the sum of its proper divisors (21299557).

103140443 is an equidigital number, since it uses as much as digits as its factorization.

103140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10419 (or 10405 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 103140443 is about 10155.8083380891. The cubic root of 103140443 is about 468.9677708602.

Adding to 103140443 its reverse (344041301), we get a palindrome (447181744).

The spelling of 103140443 in words is "one hundred three million, one hundred forty thousand, four hundred forty-three".