1223725 has 12 divisors (see below), whose sum is σ = 1567360. Its totient is φ = 946800.

The previous prime is 1223723. The next prime is 1223731. The reversal of 1223725 is 5273221.

It is not a de Polignac number, because 1223725 - 2¹ = 1223723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223696 and 1223705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15 + ... + 1564.

2^1223725 is an apocalyptic number.

It is an amenable number.

1223725 is a deficient number, since it is larger than the sum of its proper divisors (343635).

1223725 is a wasteful number, since it uses less digits than its factorization.

1223725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1615 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 1223725 is about 1106.2210448188. The cubic root of 1223725 is about 106.9616131554.

Adding to 1223725 its reverse (5273221), we get a palindrome (6496946).

The spelling of 1223725 in words is "one million, two hundred twenty-three thousand, seven hundred twenty-five".