140490893 has 8 divisors (see below), whose sum is σ = 143927712. Its totient is φ = 137093616.

The previous prime is 140490881. The next prime is 140490901. The reversal of 140490893 is 398094041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140490893 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 (140490803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2630 + ... + 16967.

It is an arithmetic number, because the mean of its divisors is an integer number (17990964).

Almost surely, 2^140490893 is an apocalyptic number.

It is an amenable number.

140490893 is a deficient number, since it is larger than the sum of its proper divisors (3436819).

140490893 is a wasteful number, since it uses less digits than its factorization.

140490893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19771.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 140490893 is about 11852.8854292953. The cubic root of 140490893 is about 519.8555972308.

The spelling of 140490893 in words is "one hundred forty million, four hundred ninety thousand, eight hundred ninety-three".