16131020 has 24 divisors (see below), whose sum is σ = 34664784. Its totient is φ = 6302016.

The previous prime is 16130993. The next prime is 16131043. The reversal of 16131020 is 2013161.

It is a junction number, because it is equal to n+sod(n) for n = 16130986 and 16131004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8519 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (1444366).

Almost surely, 2^16131020 is an apocalyptic number.

16131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16131020 is an abundant number, since it is smaller than the sum of its proper divisors (18533764).

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

16131020 is a wasteful number, since it uses less digits than its factorization.

16131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809 (or 18807 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 16131020 is about 4016.3441087636. The cubic root of 16131020 is about 252.6701529336.

Adding to 16131020 its reverse (2013161), we get a palindrome (18144181).

The spelling of 16131020 in words is "sixteen million, one hundred thirty-one thousand, twenty".