1152728539 has 2 divisors, whose sum is σ = 1152728540. Its totient is φ = 1152728538.

The previous prime is 1152728509. The next prime is 1152728543. The reversal of 1152728539 is 9358272511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152728539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1152728495 and 1152728504.

It is not a weakly prime, because it can be changed into another prime (1152728509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576364269 + 576364270.

It is an arithmetic number, because the mean of its divisors is an integer number (576364270).

Almost surely, 2^1152728539 is an apocalyptic number.

1152728539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152728539 is an equidigital number, since it uses as much as digits as its factorization.

1152728539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 1152728539 is about 33951.8561937341. The cubic root of 1152728539 is about 1048.5174963369.

The spelling of 1152728539 in words is "one billion, one hundred fifty-two million, seven hundred twenty-eight thousand, five hundred thirty-nine".