16131630 has 32 divisors (see below), whose sum is σ = 39765024. Its totient is φ = 4185216.

The previous prime is 16131617. The next prime is 16131637. The reversal of 16131630 is 3613161.

It is a junction number, because it is equal to n+sod(n) for n = 16131597 and 16131606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131637) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6157 + ... + 8376.

It is an arithmetic number, because the mean of its divisors is an integer number (1242657).

Almost surely, 2^16131630 is an apocalyptic number.

16131630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16131630 is an abundant number, since it is smaller than the sum of its proper divisors (23633394).

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

16131630 is a wasteful number, since it uses less digits than its factorization.

16131630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 16131630 is about 4016.4200477540. The cubic root of 16131630 is about 252.6733378293.

Adding to 16131630 its reverse (3613161), we get a palindrome (19744791).

It can be divided in two parts, 16131 and 630, that added together give a palindrome (16761).

The spelling of 16131630 in words is "sixteen million, one hundred thirty-one thousand, six hundred thirty".