140390188 has 6 divisors (see below), whose sum is σ = 245682836. Its totient is φ = 70195092.

The previous prime is 140390171. The next prime is 140390207. The reversal of 140390188 is 881093041.

It is a happy number.

140390188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17548770 + ... + 17548777.

Almost surely, 2^140390188 is an apocalyptic number.

It is an amenable number.

140390188 is a deficient number, since it is larger than the sum of its proper divisors (105292648).

140390188 is a wasteful number, since it uses less digits than its factorization.

140390188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35097551 (or 35097549 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 140390188 is about 11848.6365460335. The cubic root of 140390188 is about 519.7313553183.

The spelling of 140390188 in words is "one hundred forty million, three hundred ninety thousand, one hundred eighty-eight".