28150137 has 24 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 17844288.

The previous prime is 28150121. The next prime is 28150163. The reversal of 28150137 is 73105182.

It is not a de Polignac number, because 28150137 - 2⁴ = 28150121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28150137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28150037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49189 + ... + 49757.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 2^28150137 is an apocalyptic number.

It is an amenable number.

28150137 is a deficient number, since it is larger than the sum of its proper divisors (14531463).

28150137 is a wasteful number, since it uses less digits than its factorization.

28150137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28150137 is about 5305.6702686842. The cubic root of 28150137 is about 304.2006732813.

The spelling of 28150137 in words is "twenty-eight million, one hundred fifty thousand, one hundred thirty-seven".