103140228 has 12 divisors (see below), whose sum is σ = 240660560. Its totient is φ = 34380072.

The previous prime is 103140223. The next prime is 103140229. The reversal of 103140228 is 822041301.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (103140221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4297498 + ... + 4297521.

Almost surely, 2^103140228 is an apocalyptic number.

It is an amenable number.

103140228 is an abundant number, since it is smaller than the sum of its proper divisors (137520332).

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

103140228 is a wasteful number, since it uses less digits than its factorization.

103140228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595026 (or 8595024 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 103140228 is about 10155.7977530079. The cubic root of 103140228 is about 468.9674449999.

Adding to 103140228 its reverse (822041301), we get a palindrome (925181529).

The spelling of 103140228 in words is "one hundred three million, one hundred forty thousand, two hundred twenty-eight".