12140539 has 2 divisors, whose sum is σ = 12140540. Its totient is φ = 12140538.

The previous prime is 12140521. The next prime is 12140543. The reversal of 12140539 is 93504121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12140539 - 2¹⁹ = 11616251 is a prime.

It is not a weakly prime, because it can be changed into another prime (12140509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6070269 + 6070270.

It is an arithmetic number, because the mean of its divisors is an integer number (6070270).

Almost surely, 2^12140539 is an apocalyptic number.

12140539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140539 is an equidigital number, since it uses as much as digits as its factorization.

12140539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12140539 is about 3484.3276252385. The cubic root of 12140539 is about 229.8331430005.

The spelling of 12140539 in words is "twelve million, one hundred forty thousand, five hundred thirty-nine".