103281132 has 48 divisors (see below), whose sum is σ = 257628672. Its totient is φ = 32123520.

The previous prime is 103281121. The next prime is 103281161. The reversal of 103281132 is 231182301.

It is a junction number, because it is equal to n+sod(n) for n = 103281099 and 103281108.

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, 6753 + ... + 15879.

It is an arithmetic number, because the mean of its divisors is an integer number (5367264).

Almost surely, 2^103281132 is an apocalyptic number.

103281132 is a gapful number since it is divisible by the number (12) 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 103281132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128814336).

103281132 is an abundant number, since it is smaller than the sum of its proper divisors (154347540).

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

103281132 is a wasteful number, since it uses less digits than its factorization.

103281132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9198 (or 9196 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 103281132 is about 10162.7325065653. The cubic root of 103281132 is about 469.1809062320.

The spelling of 103281132 in words is "one hundred three million, two hundred eighty-one thousand, one hundred thirty-two".