28452159 has 6 divisors (see below), whose sum is σ = 41097576. Its totient is φ = 18968100.

The previous prime is 28452133. The next prime is 28452163. The reversal of 28452159 is 95125482.

28452159 is a `hidden beast` number, since 2 + 84 + 521 + 59 = 666.

It is not a de Polignac number, because 28452159 - 2⁷ = 28452031 is a prime.

It is a super-2 number, since 2×28452159² = 1619050703522562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28452199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1580667 + ... + 1580684.

It is an arithmetic number, because the mean of its divisors is an integer number (6849596).

Almost surely, 2^28452159 is an apocalyptic number.

28452159 is a deficient number, since it is larger than the sum of its proper divisors (12645417).

28452159 is a wasteful number, since it uses less digits than its factorization.

28452159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161357 (or 3161354 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 28452159 is about 5334.0565238850. The cubic root of 28452159 is about 305.2847256081.

The spelling of 28452159 in words is "twenty-eight million, four hundred fifty-two thousand, one hundred fifty-nine".