103443140 has 24 divisors (see below), whose sum is σ = 218538432. Its totient is φ = 41128160.

The previous prime is 103443103. The next prime is 103443169. The reversal of 103443140 is 41344301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12146 + ... + 18825.

It is an arithmetic number, because the mean of its divisors is an integer number (9105768).

Almost surely, 2^103443140 is an apocalyptic number.

103443140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103443140 is an abundant number, since it is smaller than the sum of its proper divisors (115095292).

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

103443140 is a wasteful number, since it uses less digits than its factorization.

103443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31147 (or 31145 counting only the distinct ones).

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

The square root of 103443140 is about 10170.7000742328. The cubic root of 103443140 is about 469.4260989710.

Adding to 103443140 its reverse (41344301), we get a palindrome (144787441).

The spelling of 103443140 in words is "one hundred three million, four hundred forty-three thousand, one hundred forty".