1225469 has 4 divisors (see below), whose sum is σ = 1400544. Its totient is φ = 1050396.

The previous prime is 1225459. The next prime is 1225493. The reversal of 1225469 is 9645221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1225469 - 2¹² = 1221373 is a prime.

It is a super-2 number, since 2×1225469² = 3003548539922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87527 + ... + 87540.

It is an arithmetic number, because the mean of its divisors is an integer number (350136).

2^1225469 is an apocalyptic number.

It is an amenable number.

1225469 is a deficient number, since it is larger than the sum of its proper divisors (175075).

1225469 is an equidigital number, since it uses as much as digits as its factorization.

1225469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175074.

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

The square root of 1225469 is about 1107.0090333868. The cubic root of 1225469 is about 107.0124013926.

The spelling of 1225469 in words is "one million, two hundred twenty-five thousand, four hundred sixty-nine".