12151575539 has 2 divisors, whose sum is σ = 12151575540. Its totient is φ = 12151575538.

The previous prime is 12151575523. The next prime is 12151575587. The reversal of 12151575539 is 93557515121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12151575539 - 2⁴ = 12151575523 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12151575539.

It is not a weakly prime, because it can be changed into another prime (12151575599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075787769 + 6075787770.

It is an arithmetic number, because the mean of its divisors is an integer number (6075787770).

Almost surely, 2^12151575539 is an apocalyptic number.

12151575539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12151575539 is an equidigital number, since it uses as much as digits as its factorization.

12151575539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236250, while the sum is 44.

The spelling of 12151575539 in words is "twelve billion, one hundred fifty-one million, five hundred seventy-five thousand, five hundred thirty-nine".