140284023 has 8 divisors (see below), whose sum is σ = 204049536. Its totient is φ = 85020600.

The previous prime is 140284009. The next prime is 140284031. The reversal of 140284023 is 320482041.

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

It is not a de Polignac number, because 140284023 - 2⁴ = 140284007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140283984 and 140284002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140284093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125483 + ... + 2125548.

It is an arithmetic number, because the mean of its divisors is an integer number (25506192).

Almost surely, 2^140284023 is an apocalyptic number.

140284023 is a deficient number, since it is larger than the sum of its proper divisors (63765513).

140284023 is a wasteful number, since it uses less digits than its factorization.

140284023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251045.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 140284023 is about 11844.1556474069. The cubic root of 140284023 is about 519.6003129367.

The spelling of 140284023 in words is "one hundred forty million, two hundred eighty-four thousand, twenty-three".