103178140 has 48 divisors (see below), whose sum is σ = 239057280. Its totient is φ = 37163520.

The previous prime is 103178129. The next prime is 103178147. The reversal of 103178140 is 41871301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103178147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5821 + ... + 15499.

It is an arithmetic number, because the mean of its divisors is an integer number (4980360).

Almost surely, 2^103178140 is an apocalyptic number.

103178140 is a gapful number since it is divisible by the number (10) 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 103178140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119528640).

103178140 is an abundant number, since it is smaller than the sum of its proper divisors (135879140).

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

103178140 is a wasteful number, since it uses less digits than its factorization.

103178140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9742 (or 9740 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 103178140 is about 10157.6641015541. The cubic root of 103178140 is about 469.0248985468.

The spelling of 103178140 in words is "one hundred three million, one hundred seventy-eight thousand, one hundred forty".