802542187 has 2 divisors, whose sum is σ = 802542188. Its totient is φ = 802542186.

The previous prime is 802542157. The next prime is 802542193. The reversal of 802542187 is 781245208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 802542187 - 2¹¹ = 802540139 is a prime.

It is not a weakly prime, because it can be changed into another prime (802542127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401271093 + 401271094.

It is an arithmetic number, because the mean of its divisors is an integer number (401271094).

Almost surely, 2^802542187 is an apocalyptic number.

802542187 is a deficient number, since it is larger than the sum of its proper divisors (1).

802542187 is an equidigital number, since it uses as much as digits as its factorization.

802542187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 802542187 is about 28329.1755439512. The cubic root of 802542187 is about 929.3000425518.

The spelling of 802542187 in words is "eight hundred two million, five hundred forty-two thousand, one hundred eighty-seven".