28150132 has 12 divisors (see below), whose sum is σ = 49335076. Its totient is φ = 14054400.

The previous prime is 28150121. The next prime is 28150163. The reversal of 28150132 is 23105182.

It can be written as a sum of positive squares in 2 ways, for example, as 25341156 + 2808976 = 5034^2 + 1676^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1869 + ... + 7732.

Almost surely, 2^28150132 is an apocalyptic number.

It is an amenable number.

28150132 is a deficient number, since it is larger than the sum of its proper divisors (21184944).

28150132 is a wasteful number, since it uses less digits than its factorization.

28150132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10338 (or 10336 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 28150132 is about 5305.6697974902. The cubic root of 28150132 is about 304.2006552707.

It can be divided in two parts, 28150 and 132, that added together give a palindrome (28282).

The spelling of 28150132 in words is "twenty-eight million, one hundred fifty thousand, one hundred thirty-two".