140044187 has 2 divisors, whose sum is σ = 140044188. Its totient is φ = 140044186.

The previous prime is 140044159. The next prime is 140044213. The reversal of 140044187 is 781440041.

It is a strong prime.

It is an emirp because it is prime and its reverse (781440041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140044187 - 2⁶ = 140044123 is a prime.

It is a super-2 number, since 2×140044187² = 39224748624981938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140044127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70022093 + 70022094.

It is an arithmetic number, because the mean of its divisors is an integer number (70022094).

Almost surely, 2^140044187 is an apocalyptic number.

140044187 is a deficient number, since it is larger than the sum of its proper divisors (1).

140044187 is an equidigital number, since it uses as much as digits as its factorization.

140044187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 140044187 is about 11834.0266604398. The cubic root of 140044187 is about 519.3040331857.

The spelling of 140044187 in words is "one hundred forty million, forty-four thousand, one hundred eighty-seven".