140185028 has 12 divisors (see below), whose sum is σ = 245606592. Its totient is φ = 70011720.

The previous prime is 140184959. The next prime is 140185033. The reversal of 140185028 is 820581041.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16208 + ... + 23303.

It is an arithmetic number, because the mean of its divisors is an integer number (20467216).

Almost surely, 2^140185028 is an apocalyptic number.

It is an amenable number.

140185028 is a deficient number, since it is larger than the sum of its proper divisors (105421564).

140185028 is a wasteful number, since it uses less digits than its factorization.

140185028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40402 (or 40400 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 140185028 is about 11839.9758445700. The cubic root of 140185028 is about 519.4780611029.

The spelling of 140185028 in words is "one hundred forty million, one hundred eighty-five thousand, twenty-eight".