140742189 has 48 divisors (see below), whose sum is σ = 240948864. Its totient is φ = 77500800.

The previous prime is 140742181. The next prime is 140742209. The reversal of 140742189 is 981247041.

It is not a de Polignac number, because 140742189 - 2³ = 140742181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140742181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203334 + ... + 204024.

It is an arithmetic number, because the mean of its divisors is an integer number (5019768).

Almost surely, 2^140742189 is an apocalyptic number.

It is an amenable number.

140742189 is a deficient number, since it is larger than the sum of its proper divisors (100206675).

140742189 is a wasteful number, since it uses less digits than its factorization.

140742189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 815 counting only the distinct ones).

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

The square root of 140742189 is about 11863.4813187361. The cubic root of 140742189 is about 520.1653677699.

The spelling of 140742189 in words is "one hundred forty million, seven hundred forty-two thousand, one hundred eighty-nine".