949131109 has 2 divisors, whose sum is σ = 949131110. Its totient is φ = 949131108.

The previous prime is 949131101. The next prime is 949131119. The reversal of 949131109 is 901131949.

949131109 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., 907334884 + 41796225 = 30122^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 949131109 - 2³ = 949131101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949131101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474565554 + 474565555.

It is an arithmetic number, because the mean of its divisors is an integer number (474565555).

Almost surely, 2^949131109 is an apocalyptic number.

It is an amenable number.

949131109 is a deficient number, since it is larger than the sum of its proper divisors (1).

949131109 is an equidigital number, since it uses as much as digits as its factorization.

949131109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 949131109 is about 30807.9715171252. The cubic root of 949131109 is about 982.7477753925.

The spelling of 949131109 in words is "nine hundred forty-nine million, one hundred thirty-one thousand, one hundred nine".