1225473 has 4 divisors (see below), whose sum is σ = 1633968. Its totient is φ = 816980.

The previous prime is 1225459. The next prime is 1225493. The reversal of 1225473 is 3745221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3745221 = 3 ⋅1248407.

It is a cyclic number.

It is not a de Polignac number, because 1225473 - 2⁶ = 1225409 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1225493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204243 + ... + 204248.

It is an arithmetic number, because the mean of its divisors is an integer number (408492).

2^1225473 is an apocalyptic number.

It is an amenable number.

1225473 is a deficient number, since it is larger than the sum of its proper divisors (408495).

1225473 is an equidigital number, since it uses as much as digits as its factorization.

1225473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408494.

The product of its digits is 1680, while the sum is 24.

The square root of 1225473 is about 1107.0108400553. The cubic root of 1225473 is about 107.0125178239.

Subtracting from 1225473 its sum of digits (24), we obtain a square (1225449 = 1107²).

The spelling of 1225473 in words is "one million, two hundred twenty-five thousand, four hundred seventy-three".