16143136 has 12 divisors (see below), whose sum is σ = 31781862. Its totient is φ = 8071552.

The previous prime is 16143131. The next prime is 16143139. The reversal of 16143136 is 63134161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9610000 + 6533136 = 3100^2 + 2556^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16143136.

It is not an unprimeable number, because it can be changed into a prime (16143131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252205 + ... + 252268.

Almost surely, 2^16143136 is an apocalyptic number.

16143136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16143136 is a deficient number, since it is larger than the sum of its proper divisors (15638726).

16143136 is an equidigital number, since it uses as much as digits as its factorization.

16143136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504483 (or 504475 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 16143136 is about 4017.8521625366. The cubic root of 16143136 is about 252.7333972383.

Adding to 16143136 its reverse (63134161), we get a palindrome (79277297).

Subtracting 16143136 from its reverse (63134161), we obtain a square (46991025 = 6855²).

The spelling of 16143136 in words is "sixteen million, one hundred forty-three thousand, one hundred thirty-six".