140010023 has 4 divisors (see below), whose sum is σ = 140460528. Its totient is φ = 139559520.

The previous prime is 140010019. The next prime is 140010053. The reversal of 140010023 is 320010041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140010023 - 2² = 140010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140009986 and 140010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140010053) 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 3 ways as a sum of consecutive naturals, for example, 224786 + ... + 225407.

It is an arithmetic number, because the mean of its divisors is an integer number (35115132).

Almost surely, 2^140010023 is an apocalyptic number.

140010023 is a deficient number, since it is larger than the sum of its proper divisors (450505).

140010023 is an equidigital number, since it uses as much as digits as its factorization.

140010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450504.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 140010023 is about 11832.5831076735. The cubic root of 140010023 is about 519.2618014057.

Adding to 140010023 its reverse (320010041), we get a palindrome (460020064).

The spelling of 140010023 in words is "one hundred forty million, ten thousand, twenty-three".