28153019 has 8 divisors (see below), whose sum is σ = 29190672. Its totient is φ = 27132160.

The previous prime is 28153009. The next prime is 28153039. The reversal of 28153019 is 91035182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28153019 - 2⁸ = 28152763 is a prime.

It is a super-2 number, since 2×28153019² = 1585184957628722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28152982 and 28153000.

It is not an unprimeable number, because it can be changed into a prime (28153009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (3648834).

Almost surely, 2^28153019 is an apocalyptic number.

28153019 is a deficient number, since it is larger than the sum of its proper divisors (1037653).

28153019 is an equidigital number, since it uses as much as digits as its factorization.

28153019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 28153019 is about 5305.9418579551. The cubic root of 28153019 is about 304.2110542423.

The spelling of 28153019 in words is "twenty-eight million, one hundred fifty-three thousand, nineteen".