140001423 has 4 divisors (see below), whose sum is σ = 186668568. Its totient is φ = 93334280.

The previous prime is 140001401. The next prime is 140001427. The reversal of 140001423 is 324100041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324100041 = 3 ⋅108033347.

It is a cyclic number.

It is not a de Polignac number, because 140001423 - 2⁶ = 140001359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001427) 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, 23333568 + ... + 23333573.

It is an arithmetic number, because the mean of its divisors is an integer number (46667142).

Almost surely, 2^140001423 is an apocalyptic number.

140001423 is a deficient number, since it is larger than the sum of its proper divisors (46667145).

140001423 is an equidigital number, since it uses as much as digits as its factorization.

140001423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46667144.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140001423 is about 11832.2196987717. The cubic root of 140001423 is about 519.2511694456.

Adding to 140001423 its reverse (324100041), we get a palindrome (464101464).

The spelling of 140001423 in words is "one hundred forty million, one thousand, four hundred twenty-three".