103520 has 24 divisors (see below), whose sum is σ = 244944. Its totient is φ = 41344.

The previous prime is 103511. The next prime is 103529. The reversal of 103520 is 25301.

It is an interprime number because it is at equal distance from previous prime (103511) and next prime (103529).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103529) by changing a digit.

103520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 483.

It is an arithmetic number, because the mean of its divisors is an integer number (10206).

2¹⁰³⁵²⁰ is an apocalyptic number.

103520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103520 is an abundant number, since it is smaller than the sum of its proper divisors (141424).

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

103520 is an equidigital number, since it uses as much as digits as its factorization.

103520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 103520 is about 321.7452408350. The cubic root of 103520 is about 46.9542334027.

Adding to 103520 its reverse (25301), we get a palindrome (128821).

The spelling of 103520 in words is "one hundred three thousand, five hundred twenty".