1612225 has 6 divisors (see below), whose sum is σ = 1999190. Its totient is φ = 1289760.

The previous prime is 1612223. The next prime is 1612249. The reversal of 1612225 is 5222161.

It can be written as a sum of positive squares in 3 ways, for example, as 150544 + 1461681 = 388^2 + 1209^2 .

It is not a de Polignac number, because 1612225 - 2¹ = 1612223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1612223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32220 + ... + 32269.

2^1612225 is an apocalyptic number.

It is an amenable number.

1612225 is a deficient number, since it is larger than the sum of its proper divisors (386965).

1612225 is an equidigital number, since it uses as much as digits as its factorization.

1612225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64499 (or 64494 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 1612225 is about 1269.7342241587. The cubic root of 1612225 is about 117.2578383656.

Adding to 1612225 its reverse (5222161), we get a palindrome (6834386).

The spelling of 1612225 in words is "one million, six hundred twelve thousand, two hundred twenty-five".