3140023 has 4 divisors (see below), whose sum is σ = 3206880. Its totient is φ = 3073168.

The previous prime is 3139993. The next prime is 3140041. The reversal of 3140023 is 3200413.

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 3140023 - 2⁵ = 3139991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3139985 and 3140012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140623) 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, 33358 + ... + 33451.

It is an arithmetic number, because the mean of its divisors is an integer number (801720).

Almost surely, 2^3140023 is an apocalyptic number.

3140023 is a deficient number, since it is larger than the sum of its proper divisors (66857).

3140023 is an equidigital number, since it uses as much as digits as its factorization.

3140023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66856.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3140023 is about 1772.0110044805. The cubic root of 3140023 is about 146.4347925857.

Adding to 3140023 its reverse (3200413), we get a palindrome (6340436).

The spelling of 3140023 in words is "three million, one hundred forty thousand, twenty-three".