1010542549 has 2 divisors, whose sum is σ = 1010542550. Its totient is φ = 1010542548.

The previous prime is 1010542529. The next prime is 1010542591. The reversal of 1010542549 is 9452450101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978563524 + 31979025 = 31282^2 + 5655^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010542549 - 2⁵ = 1010542517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010542549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010542529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505271274 + 505271275.

It is an arithmetic number, because the mean of its divisors is an integer number (505271275).

Almost surely, 2^1010542549 is an apocalyptic number.

It is an amenable number.

1010542549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010542549 is an equidigital number, since it uses as much as digits as its factorization.

1010542549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1010542549 is about 31789.0318978103. The cubic root of 1010542549 is about 1003.5019053439.

The spelling of 1010542549 in words is "one billion, ten million, five hundred forty-two thousand, five hundred forty-nine".