1909914148 has 24 divisors (see below), whose sum is σ = 3461262840. Its totient is φ = 921573120.

The previous prime is 1909914131. The next prime is 1909914151. The reversal of 1909914148 is 8414199091.

It can be written as a sum of positive squares in 4 ways, for example, as 40043584 + 1869870564 = 6328^2 + 43242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1909914098 and 1909914107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60913 + ... + 86776.

It is an arithmetic number, because the mean of its divisors is an integer number (144219285).

Almost surely, 2^1909914148 is an apocalyptic number.

It is an amenable number.

1909914148 is a deficient number, since it is larger than the sum of its proper divisors (1551348692).

1909914148 is a wasteful number, since it uses less digits than its factorization.

1909914148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147807 (or 147805 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1909914148 is about 43702.5645471750. The cubic root of 1909914148 is about 1240.7128549416.

The spelling of 1909914148 in words is "one billion, nine hundred nine million, nine hundred fourteen thousand, one hundred forty-eight".