103143404 has 72 divisors (see below), whose sum is σ = 227259648. Its totient is φ = 40098240.

The previous prime is 103143377. The next prime is 103143407. The reversal of 103143404 is 404341301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (103143407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335819 + ... + 336125.

It is an arithmetic number, because the mean of its divisors is an integer number (3156384).

Almost surely, 2^103143404 is an apocalyptic number.

103143404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103143404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113629824).

103143404 is an abundant number, since it is smaller than the sum of its proper divisors (124116244).

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

103143404 is a wasteful number, since it uses less digits than its factorization.

103143404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 400 counting only the distinct ones).

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

The square root of 103143404 is about 10155.9541156900. The cubic root of 103143404 is about 468.9722585931.

Adding to 103143404 its reverse (404341301), we get a palindrome (507484705).

The spelling of 103143404 in words is "one hundred three million, one hundred forty-three thousand, four hundred four".