109101649 has 2 divisors, whose sum is σ = 109101650. Its totient is φ = 109101648.

The previous prime is 109101589. The next prime is 109101659. The reversal of 109101649 is 946101901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99860049 + 9241600 = 9993^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 109101649 - 2¹⁷ = 108970577 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 109101649.

It is not a weakly prime, because it can be changed into another prime (109101659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54550824 + 54550825.

It is an arithmetic number, because the mean of its divisors is an integer number (54550825).

Almost surely, 2^109101649 is an apocalyptic number.

It is an amenable number.

109101649 is a deficient number, since it is larger than the sum of its proper divisors (1).

109101649 is an equidigital number, since it uses as much as digits as its factorization.

109101649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 109101649 is about 10445.1734786934. The cubic root of 109101649 is about 477.8340620770.

The spelling of 109101649 in words is "one hundred nine million, one hundred one thousand, six hundred forty-nine".