140247189 has 24 divisors (see below), whose sum is σ = 216871200. Its totient is φ = 87069600.

The previous prime is 140247187. The next prime is 140247197. The reversal of 140247189 is 981742041.

It is not a de Polignac number, because 140247189 - 2¹ = 140247187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140247181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3139 + ... + 17039.

It is an arithmetic number, because the mean of its divisors is an integer number (9036300).

Almost surely, 2^140247189 is an apocalyptic number.

140247189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140247189 is a deficient number, since it is larger than the sum of its proper divisors (76624011).

140247189 is a wasteful number, since it uses less digits than its factorization.

140247189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13985 (or 13982 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 140247189 is about 11842.6006012193. The cubic root of 140247189 is about 519.5548322686.

The spelling of 140247189 in words is "one hundred forty million, two hundred forty-seven thousand, one hundred eighty-nine".