1521054539 has 2 divisors, whose sum is σ = 1521054540. Its totient is φ = 1521054538.

The previous prime is 1521054529. The next prime is 1521054547. The reversal of 1521054539 is 9354501251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1521054539 - 2²⁸ = 1252619083 is a prime.

It is a super-2 number, since 2×1521054539² = 4627213821225005042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1521054499 and 1521054508.

It is not a weakly prime, because it can be changed into another prime (1521054529) 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, 760527269 + 760527270.

It is an arithmetic number, because the mean of its divisors is an integer number (760527270).

Almost surely, 2^1521054539 is an apocalyptic number.

1521054539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521054539 is an equidigital number, since it uses as much as digits as its factorization.

1521054539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1521054539 is about 39000.6992116808. The cubic root of 1521054539 is about 1150.0452506454.

The spelling of 1521054539 in words is "one billion, five hundred twenty-one million, fifty-four thousand, five hundred thirty-nine".