1223025 has 24 divisors (see below), whose sum is σ = 2112960. Its totient is φ = 623040.

The previous prime is 1223021. The next prime is 1223029. The reversal of 1223025 is 5203221.

It is an interprime number because it is at equal distance from previous prime (1223021) and next prime (1223029).

It is not a de Polignac number, because 1223025 - 2² = 1223021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1222995 and 1223013.

It is not an unprimeable number, because it can be changed into a prime (1223021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (88040).

2^1223025 is an apocalyptic number.

1223025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223025 is a deficient number, since it is larger than the sum of its proper divisors (889935).

1223025 is a wasteful number, since it uses less digits than its factorization.

1223025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1223025 is about 1105.9046070977. The cubic root of 1223025 is about 106.9412143974.

Adding to 1223025 its reverse (5203221), we get a palindrome (6426246).

The spelling of 1223025 in words is "one million, two hundred twenty-three thousand, twenty-five".