185242147 has 2 divisors, whose sum is σ = 185242148. Its totient is φ = 185242146.

The previous prime is 185242129. The next prime is 185242157. The reversal of 185242147 is 741242581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 185242147 - 2¹⁵ = 185209379 is a prime.

It is not a weakly prime, because it can be changed into another prime (185242157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92621073 + 92621074.

It is an arithmetic number, because the mean of its divisors is an integer number (92621074).

Almost surely, 2^185242147 is an apocalyptic number.

185242147 is a deficient number, since it is larger than the sum of its proper divisors (1).

185242147 is an equidigital number, since it uses as much as digits as its factorization.

185242147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 34.

The square root of 185242147 is about 13610.3690985954. The cubic root of 185242147 is about 570.0504182344.

The spelling of 185242147 in words is "one hundred eighty-five million, two hundred forty-two thousand, one hundred forty-seven".