1051549 has 2 divisors, whose sum is σ = 1051550. Its totient is φ = 1051548.

The previous prime is 1051543. The next prime is 1051553. The reversal of 1051549 is 9451501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 268324 = 885^2 + 518^2 .

It is an emirp because it is prime and its reverse (9451501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1051549 - 2¹⁷ = 920477 is a prime.

It is a super-2 number, since 2×1051549² = 2211510598802, which contains 22 as substring.

1051549 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525774 + 525775.

It is an arithmetic number, because the mean of its divisors is an integer number (525775).

2^1051549 is an apocalyptic number.

It is an amenable number.

1051549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051549 is an equidigital number, since it uses as much as digits as its factorization.

1051549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1051549 is about 1025.4506326489. The cubic root of 1051549 is about 101.6895920112.

It can be divided in two parts, 1051 and 549, that added together give a square (1600 = 40²).

The spelling of 1051549 in words is "one million, fifty-one thousand, five hundred forty-nine".