1272225 has 12 divisors (see below), whose sum is σ = 2103536. Its totient is φ = 678480.

The previous prime is 1272223. The next prime is 1272233. The reversal of 1272225 is 5222721.

It is a happy number.

It is not a de Polignac number, because 1272225 - 2¹ = 1272223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8407 + ... + 8556.

2^1272225 is an apocalyptic number.

1272225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1272225 is a deficient number, since it is larger than the sum of its proper divisors (831311).

1272225 is a wasteful number, since it uses less digits than its factorization.

1272225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16971 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 1272225 is about 1127.9295190747. The cubic root of 1272225 is about 108.3564184860.

Adding to 1272225 its reverse (5222721), we get a palindrome (6494946).

The spelling of 1272225 in words is "one million, two hundred seventy-two thousand, two hundred twenty-five".