1225748 has 6 divisors (see below), whose sum is σ = 2145066. Its totient is φ = 612872.

The previous prime is 1225729. The next prime is 1225759. The reversal of 1225748 is 8475221.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 300304 = 962^2 + 548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1225748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153215 + ... + 153222.

It is an arithmetic number, because the mean of its divisors is an integer number (357511).

2^1225748 is an apocalyptic number.

It is an amenable number.

1225748 is a deficient number, since it is larger than the sum of its proper divisors (919318).

1225748 is a wasteful number, since it uses less digits than its factorization.

1225748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306441 (or 306439 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1225748 is about 1107.1350414471. The cubic root of 1225748 is about 107.0205218739.

The spelling of 1225748 in words is "one million, two hundred twenty-five thousand, seven hundred forty-eight".