140530023 has 24 divisors (see below), whose sum is σ = 222967680. Its totient is φ = 84894480.

The previous prime is 140529979. The next prime is 140530051. The reversal of 140530023 is 320035041.

It is not a de Polignac number, because 140530023 - 2⁹ = 140529511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140529978 and 140530005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140530073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13933 + ... + 21798.

It is an arithmetic number, because the mean of its divisors is an integer number (9290320).

Almost surely, 2^140530023 is an apocalyptic number.

140530023 is a deficient number, since it is larger than the sum of its proper divisors (82437657).

140530023 is a wasteful number, since it uses less digits than its factorization.

140530023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35779 (or 35776 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 140530023 is about 11854.5359672996. The cubic root of 140530023 is about 519.9038567320.

Adding to 140530023 its reverse (320035041), we get a palindrome (460565064).

The spelling of 140530023 in words is "one hundred forty million, five hundred thirty thousand, twenty-three".