16503130 has 32 divisors (see below), whose sum is σ = 34110720. Its totient is φ = 5631360.

The previous prime is 16503119. The next prime is 16503131. The reversal of 16503130 is 3130561.

It is a junction number, because it is equal to n+sod(n) for n = 16503098 and 16503107.

It is not an unprimeable number, because it can be changed into a prime (16503131) 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, 19251 + ... + 20089.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960).

Almost surely, 2^16503130 is an apocalyptic number.

16503130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16503130 is an abundant number, since it is smaller than the sum of its proper divisors (17607590).

16503130 is a wasteful number, since it uses less digits than its factorization.

16503130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 16503130 is about 4062.4044604150. The cubic root of 16503130 is about 254.5982652871.

Adding to 16503130 its reverse (3130561), we get a palindrome (19633691).

The spelling of 16503130 in words is "sixteen million, five hundred three thousand, one hundred thirty".