1549129 has 2 divisors, whose sum is σ = 1549130. Its totient is φ = 1549128.

The previous prime is 1549099. The next prime is 1549139. The reversal of 1549129 is 9219451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 121104 = 1195^2 + 348^2 .

It is an emirp because it is prime and its reverse (9219451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1549129 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1549129.

It is not a weakly prime, because it can be changed into another prime (1549139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 774564 + 774565.

It is an arithmetic number, because the mean of its divisors is an integer number (774565).

2^1549129 is an apocalyptic number.

It is an amenable number.

1549129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1549129 is an equidigital number, since it uses as much as digits as its factorization.

1549129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 1549129 is about 1244.6401086258. The cubic root of 1549129 is about 115.7077711692.

The spelling of 1549129 in words is "one million, five hundred forty-nine thousand, one hundred twenty-nine".