3140243 has 2 divisors, whose sum is σ = 3140244. Its totient is φ = 3140242.

The previous prime is 3140237. The next prime is 3140251. The reversal of 3140243 is 3420413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3140243 - 2¹⁴ = 3123859 is a prime.

It is a super-2 number, since 2×3140243² = 19722252198098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3140233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570121 + 1570122.

It is an arithmetic number, because the mean of its divisors is an integer number (1570122).

Almost surely, 2^3140243 is an apocalyptic number.

3140243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3140243 is an equidigital number, since it uses as much as digits as its factorization.

3140243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3140243 is about 1772.0730797572. The cubic root of 3140243 is about 146.4382124017.

Adding to 3140243 its reverse (3420413), we get a palindrome (6560656).

The spelling of 3140243 in words is "three million, one hundred forty thousand, two hundred forty-three".