103991148 has 48 divisors (see below), whose sum is σ = 271368160. Its totient is φ = 34437312.

The previous prime is 103991137. The next prime is 103991177. The reversal of 103991148 is 841199301.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13890 + ... + 20022.

Almost surely, 2^103991148 is an apocalyptic number.

103991148 is a gapful number since it is divisible by the number (18) 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 103991148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135684080).

103991148 is an abundant number, since it is smaller than the sum of its proper divisors (167377012).

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

103991148 is a wasteful number, since it uses less digits than its factorization.

103991148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303 (or 6295 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 103991148 is about 10197.6050129430. The cubic root of 103991148 is about 470.2535948485.

The spelling of 103991148 in words is "one hundred three million, nine hundred ninety-one thousand, one hundred forty-eight".