1694225 has 18 divisors (see below), whose sum is σ = 2280546. Its totient is φ = 1248000.

The previous prime is 1694221. The next prime is 1694227. The reversal of 1694225 is 5224961.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 512656 + 1181569 = 716^2 + 1087^2 .

It is not a de Polignac number, because 1694225 - 2² = 1694221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1694221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4025 + ... + 4425.

It is an arithmetic number, because the mean of its divisors is an integer number (126697).

2^1694225 is an apocalyptic number.

It is an amenable number.

1694225 is a deficient number, since it is larger than the sum of its proper divisors (586321).

1694225 is a wasteful number, since it uses less digits than its factorization.

1694225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 419 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1694225 is about 1301.6239856426. The cubic root of 1694225 is about 119.2130214518.

It can be divided in two parts, 169 and 4225, that multiplied together give a square (714025 = 845²).

The spelling of 1694225 in words is "one million, six hundred ninety-four thousand, two hundred twenty-five".