1125627149 has 2 divisors, whose sum is σ = 1125627150. Its totient is φ = 1125627148.

The previous prime is 1125627131. The next prime is 1125627221. The reversal of 1125627149 is 9417265211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125602500 + 24649 = 33550^2 + 157^2 .

It is an emirp because it is prime and its reverse (9417265211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125627149 - 2⁸ = 1125626893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125627109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562813574 + 562813575.

It is an arithmetic number, because the mean of its divisors is an integer number (562813575).

Almost surely, 2^1125627149 is an apocalyptic number.

It is an amenable number.

1125627149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125627149 is an equidigital number, since it uses as much as digits as its factorization.

1125627149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 1125627149 is about 33550.3673452319. The cubic root of 1125627149 is about 1040.2351382157.

The spelling of 1125627149 in words is "one billion, one hundred twenty-five million, six hundred twenty-seven thousand, one hundred forty-nine".