28415159 has 4 divisors (see below), whose sum is σ = 28550040. Its totient is φ = 28280280.

The previous prime is 28415147. The next prime is 28415161. The reversal of 28415159 is 95151482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28415159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28415059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67124 + ... + 67545.

It is an arithmetic number, because the mean of its divisors is an integer number (7137510).

Almost surely, 2^28415159 is an apocalyptic number.

28415159 is a deficient number, since it is larger than the sum of its proper divisors (134881).

28415159 is a wasteful number, since it uses less digits than its factorization.

28415159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134880.

The product of its digits is 14400, while the sum is 35.

The square root of 28415159 is about 5330.5871158813. The cubic root of 28415159 is about 305.1523345450.

It can be divided in two parts, 2841 and 5159, that added together give a cube (8000 = 20³).

The spelling of 28415159 in words is "twenty-eight million, four hundred fifteen thousand, one hundred fifty-nine".