1225477 has 8 divisors (see below), whose sum is σ = 1373472. Its totient is φ = 1083600.

The previous prime is 1225459. The next prime is 1225493. The reversal of 1225477 is 7745221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099 + ... + 1912.

It is an arithmetic number, because the mean of its divisors is an integer number (171684).

2^1225477 is an apocalyptic number.

It is an amenable number.

1225477 is a deficient number, since it is larger than the sum of its proper divisors (147995).

1225477 is a wasteful number, since it uses less digits than its factorization.

1225477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its digits is 3920, while the sum is 28.

The square root of 1225477 is about 1107.0126467209. The cubic root of 1225477 is about 107.0126342551.

Subtracting from 1225477 its sum of digits (28), we obtain a square (1225449 = 1107²).

The spelling of 1225477 in words is "one million, two hundred twenty-five thousand, four hundred seventy-seven".