140943789 has 24 divisors (see below), whose sum is σ = 233659712. Its totient is φ = 80196480.

The previous prime is 140943739. The next prime is 140943811. The reversal of 140943789 is 987349041.

It is not a de Polignac number, because 140943789 - 2⁷ = 140943661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140943709) 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 23 ways as a sum of consecutive naturals, for example, 10542 + ... + 19824.

Almost surely, 2^140943789 is an apocalyptic number.

It is an amenable number.

140943789 is a deficient number, since it is larger than the sum of its proper divisors (92715923).

140943789 is a wasteful number, since it uses less digits than its factorization.

140943789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9537 (or 9534 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 140943789 is about 11871.9749410113. The cubic root of 140943789 is about 520.4136119976.

The spelling of 140943789 in words is "one hundred forty million, nine hundred forty-three thousand, seven hundred eighty-nine".