103442144 has 48 divisors (see below), whose sum is σ = 232234128. Its totient is φ = 44931072.

The previous prime is 103442123. The next prime is 103442149. The reversal of 103442144 is 441244301.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103442149) 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, 242 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (4838211).

Almost surely, 2^103442144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116117064).

103442144 is an abundant number, since it is smaller than the sum of its proper divisors (128791984).

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

103442144 is a wasteful number, since it uses less digits than its factorization.

103442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14667 (or 14659 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 103442144 is about 10170.6511099339. The cubic root of 103442144 is about 469.4245923465.

Adding to 103442144 its reverse (441244301), we get a palindrome (544686445).

The spelling of 103442144 in words is "one hundred three million, four hundred forty-two thousand, one hundred forty-four".