103140444 has 24 divisors (see below), whose sum is σ = 262539648. Its totient is φ = 31254640.

The previous prime is 103140439. The next prime is 103140449. The reversal of 103140444 is 444041301.

It is an interprime number because it is at equal distance from previous prime (103140439) and next prime (103140449).

It is a self number, because there is not a number n which added to its sum of digits gives 103140444.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390552 + ... + 390815.

It is an arithmetic number, because the mean of its divisors is an integer number (10939152).

Almost surely, 2^103140444 is an apocalyptic number.

It is an amenable number.

103140444 is an abundant number, since it is smaller than the sum of its proper divisors (159399204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103140444 is a wasteful number, since it uses less digits than its factorization.

103140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781385 (or 781383 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 103140444 is about 10155.8083873220. The cubic root of 103140444 is about 468.9677723759.

Adding to 103140444 its reverse (444041301), we get a palindrome (547181745).

The spelling of 103140444 in words is "one hundred three million, one hundred forty thousand, four hundred forty-four".