109255649 has 2 divisors, whose sum is σ = 109255650. Its totient is φ = 109255648.

The previous prime is 109255637. The next prime is 109255661. The reversal of 109255649 is 946552901.

It is a balanced prime because it is at equal distance from previous prime (109255637) and next prime (109255661).

It can be written as a sum of positive squares in only one way, i.e., 108826624 + 429025 = 10432^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 109255649 - 2¹⁶ = 109190113 is a prime.

It is a super-2 number, since 2×109255649² = 23873593676822402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (109255249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54627824 + 54627825.

It is an arithmetic number, because the mean of its divisors is an integer number (54627825).

Almost surely, 2^109255649 is an apocalyptic number.

It is an amenable number.

109255649 is a deficient number, since it is larger than the sum of its proper divisors (1).

109255649 is an equidigital number, since it uses as much as digits as its factorization.

109255649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 109255649 is about 10452.5427050072. The cubic root of 109255649 is about 478.0587817162.

The spelling of 109255649 in words is "one hundred nine million, two hundred fifty-five thousand, six hundred forty-nine".