28143051 has 16 divisors (see below), whose sum is σ = 39091968. Its totient is φ = 17992800.

The previous prime is 28143013. The next prime is 28143061. The reversal of 28143051 is 15034182.

It is not a de Polignac number, because 28143051 - 2¹³ = 28134859 is a prime.

It is a super-4 number, since 4×28143051⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (28143001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6096 + ... + 9666.

It is an arithmetic number, because the mean of its divisors is an integer number (2443248).

Almost surely, 2^28143051 is an apocalyptic number.

28143051 is a deficient number, since it is larger than the sum of its proper divisors (10948917).

28143051 is a wasteful number, since it uses less digits than its factorization.

28143051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 28143051 is about 5305.0024505178. The cubic root of 28143051 is about 304.1751465036.

The spelling of 28143051 in words is "twenty-eight million, one hundred forty-three thousand, fifty-one".