1949225 has 6 divisors (see below), whose sum is σ = 2417070. Its totient is φ = 1559360.

The previous prime is 1949201. The next prime is 1949251. The reversal of 1949225 is 5229491.

It can be written as a sum of positive squares in 3 ways, for example, as 196249 + 1752976 = 443^2 + 1324^2 .

It is not a de Polignac number, because 1949225 - 2⁶ = 1949161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1949191 and 1949200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38960 + ... + 39009.

It is an arithmetic number, because the mean of its divisors is an integer number (402845).

2^1949225 is an apocalyptic number.

It is an amenable number.

1949225 is a deficient number, since it is larger than the sum of its proper divisors (467845).

1949225 is an equidigital number, since it uses as much as digits as its factorization.

1949225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77979 (or 77974 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 1949225 is about 1396.1464822862. The cubic root of 1949225 is about 124.9167445606.

The spelling of 1949225 in words is "one million, nine hundred forty-nine thousand, two hundred twenty-five".