1010012539 has 2 divisors, whose sum is σ = 1010012540. Its totient is φ = 1010012538.

The previous prime is 1010012513. The next prime is 1010012543. The reversal of 1010012539 is 9352100101.

It is a strong prime.

It is an emirp because it is prime and its reverse (9352100101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1010012539 - 2¹⁹ = 1009488251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010012599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505006269 + 505006270.

It is an arithmetic number, because the mean of its divisors is an integer number (505006270).

Almost surely, 2^1010012539 is an apocalyptic number.

1010012539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010012539 is an equidigital number, since it uses as much as digits as its factorization.

1010012539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1010012539 is about 31780.6944386053. The cubic root of 1010012539 is about 1003.3264355573.

The spelling of 1010012539 in words is "one billion, ten million, twelve thousand, five hundred thirty-nine".