28515119 has 2 divisors, whose sum is σ = 28515120. Its totient is φ = 28515118.

The previous prime is 28515107. The next prime is 28515139. The reversal of 28515119 is 91151582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28515119 - 2¹⁶ = 28449583 is a prime.

It is a super-2 number, since 2×28515119² = 1626224023168322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28515139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14257559 + 14257560.

It is an arithmetic number, because the mean of its divisors is an integer number (14257560).

Almost surely, 2^28515119 is an apocalyptic number.

28515119 is a deficient number, since it is larger than the sum of its proper divisors (1).

28515119 is an equidigital number, since it uses as much as digits as its factorization.

28515119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 32.

The square root of 28515119 is about 5339.9549623569. The cubic root of 28515119 is about 305.5097415291.

The spelling of 28515119 in words is "twenty-eight million, five hundred fifteen thousand, one hundred nineteen".