140293128 has 16 divisors (see below), whose sum is σ = 350732880. Its totient is φ = 46764368.

The previous prime is 140293121. The next prime is 140293147. The reversal of 140293128 is 821392041.

It is a junction number, because it is equal to n+sod(n) for n = 140293095 and 140293104.

It is not an unprimeable number, because it can be changed into a prime (140293121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922750 + ... + 2922797.

It is an arithmetic number, because the mean of its divisors is an integer number (21920805).

Almost surely, 2^140293128 is an apocalyptic number.

It is an amenable number.

140293128 is an abundant number, since it is smaller than the sum of its proper divisors (210439752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140293128 is a wasteful number, since it uses less digits than its factorization.

140293128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845556 (or 5845552 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 140293128 is about 11844.5400079530. The cubic root of 140293128 is about 519.6115540802.

The spelling of 140293128 in words is "one hundred forty million, two hundred ninety-three thousand, one hundred twenty-eight".