28057151 has 2 divisors, whose sum is σ = 28057152. Its totient is φ = 28057150.

The previous prime is 28057067. The next prime is 28057163. The reversal of 28057151 is 15175082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28057151 - 2²² = 23862847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28057751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028575 + 14028576.

It is an arithmetic number, because the mean of its divisors is an integer number (14028576).

Almost surely, 2^28057151 is an apocalyptic number.

28057151 is a deficient number, since it is larger than the sum of its proper divisors (1).

28057151 is an equidigital number, since it uses as much as digits as its factorization.

28057151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 28057151 is about 5296.9001312088. The cubic root of 28057151 is about 303.8653568971.

The spelling of 28057151 in words is "twenty-eight million, fifty-seven thousand, one hundred fifty-one".