1254532549 has 2 divisors, whose sum is σ = 1254532550. Its totient is φ = 1254532548.

The previous prime is 1254532541. The next prime is 1254532567. The reversal of 1254532549 is 9452354521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066349025 + 188183524 = 32655^2 + 13718^2 .

It is an emirp because it is prime and its reverse (9452354521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1254532549 - 2³ = 1254532541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254532541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627266274 + 627266275.

It is an arithmetic number, because the mean of its divisors is an integer number (627266275).

Almost surely, 2^1254532549 is an apocalyptic number.

It is an amenable number.

1254532549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254532549 is an equidigital number, since it uses as much as digits as its factorization.

1254532549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 40.

The square root of 1254532549 is about 35419.3809799099. The cubic root of 1254532549 is about 1078.5177852378.

The spelling of 1254532549 in words is "one billion, two hundred fifty-four million, five hundred thirty-two thousand, five hundred forty-nine".