28136951 has 2 divisors, whose sum is σ = 28136952. Its totient is φ = 28136950.

The previous prime is 28136903. The next prime is 28136971. The reversal of 28136951 is 15963182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28136951 - 2¹⁰ = 28135927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28136971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14068475 + 14068476.

It is an arithmetic number, because the mean of its divisors is an integer number (14068476).

Almost surely, 2^28136951 is an apocalyptic number.

28136951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28136951 is an equidigital number, since it uses as much as digits as its factorization.

28136951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 28136951 is about 5304.4274903141. The cubic root of 28136951 is about 304.1531682840.

The spelling of 28136951 in words is "twenty-eight million, one hundred thirty-six thousand, nine hundred fifty-one".