16103540 has 12 divisors (see below), whose sum is σ = 33817476. Its totient is φ = 6441408.

The previous prime is 16103533. The next prime is 16103569. The reversal of 16103540 is 4530161.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 9972964 = 2476^2 + 3158^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 805177 = 16103540 / (1 + 6 + 1 + 0 + 3 + 5 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402569 + ... + 402608.

It is an arithmetic number, because the mean of its divisors is an integer number (2818123).

Almost surely, 2^16103540 is an apocalyptic number.

16103540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16103540 is an abundant number, since it is smaller than the sum of its proper divisors (17713936).

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

16103540 is a wasteful number, since it uses less digits than its factorization.

16103540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805186 (or 805184 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 16103540 is about 4012.9216289382. The cubic root of 16103540 is about 252.5265926311.

The spelling of 16103540 in words is "sixteen million, one hundred three thousand, five hundred forty".