3809756149 has 2 divisors, whose sum is σ = 3809756150. Its totient is φ = 3809756148.

The previous prime is 3809756107. The next prime is 3809756213. The reversal of 3809756149 is 9416579083.

It is a happy number.

3809756149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2653280100 + 1156476049 = 51510^2 + 34007^2 .

It is an emirp because it is prime and its reverse (9416579083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3809756149 - 2⁹ = 3809755637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3809756096 and 3809756105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3809750149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904878074 + 1904878075.

It is an arithmetic number, because the mean of its divisors is an integer number (1904878075).

Almost surely, 2^3809756149 is an apocalyptic number.

It is an amenable number.

3809756149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3809756149 is an equidigital number, since it uses as much as digits as its factorization.

3809756149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 3809756149 is about 61723.2221210137. Note that the first 3 decimals coincide. The cubic root of 3809756149 is about 1561.8250813891.

The spelling of 3809756149 in words is "three billion, eight hundred nine million, seven hundred fifty-six thousand, one hundred forty-nine".