140189787 has 6 divisors (see below), whose sum is σ = 202496372. Its totient is φ = 93459852.

The previous prime is 140189747. The next prime is 140189789. The reversal of 140189787 is 787981041.

It is not a de Polignac number, because 140189787 - 2¹² = 140185691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140189789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7788313 + ... + 7788330.

Almost surely, 2^140189787 is an apocalyptic number.

140189787 is a deficient number, since it is larger than the sum of its proper divisors (62306585).

140189787 is a wasteful number, since it uses less digits than its factorization.

140189787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576649 (or 15576646 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 140189787 is about 11840.1768145581. The cubic root of 140189787 is about 519.4839394485.

The spelling of 140189787 in words is "one hundred forty million, one hundred eighty-nine thousand, seven hundred eighty-seven".