1225955 has 8 divisors (see below), whose sum is σ = 1557792. Its totient is φ = 923008.

The previous prime is 1225949. The next prime is 1225963. The reversal of 1225955 is 5595221.

1225955 is nontrivially palindromic in base 9.

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

It is a cyclic number.

It is not a de Polignac number, because 1225955 - 2⁶ = 1225891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7127 + ... + 7296.

It is an arithmetic number, because the mean of its divisors is an integer number (194724).

2^1225955 is an apocalyptic number.

1225955 is a deficient number, since it is larger than the sum of its proper divisors (331837).

1225955 is a wasteful number, since it uses less digits than its factorization.

1225955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14445.

The product of its digits is 4500, while the sum is 29.

The square root of 1225955 is about 1107.2285220315. The cubic root of 1225955 is about 107.0265459509.

The spelling of 1225955 in words is "one million, two hundred twenty-five thousand, nine hundred fifty-five".