1849099225 has 24 divisors (see below), whose sum is σ = 2312864120. Its totient is φ = 1466449920.

The previous prime is 1849099211. The next prime is 1849099243. The reversal of 1849099225 is 5229909481.

It can be written as a sum of positive squares in 12 ways, for example, as 773062416 + 1076036809 = 27804^2 + 32803^2 .

It is not a de Polignac number, because 1849099225 - 2¹³ = 1849091033 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 1972957 + ... + 1973893.

Almost surely, 2^1849099225 is an apocalyptic number.

It is an amenable number.

1849099225 is a deficient number, since it is larger than the sum of its proper divisors (463764895).

1849099225 is a wasteful number, since it uses less digits than its factorization.

1849099225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 1849099225 is about 43001.1537635910. The cubic root of 1849099225 is about 1227.4017519876.

The spelling of 1849099225 in words is "one billion, eight hundred forty-nine million, ninety-nine thousand, two hundred twenty-five".