1243025 has 12 divisors (see below), whose sum is σ = 1761792. Its totient is φ = 852240.

The previous prime is 1243013. The next prime is 1243093. The reversal of 1243025 is 5203421.

It is not a de Polignac number, because 1243025 - 2¹⁰ = 1242001 is a prime.

It is a super-2 number, since 2×1243025² = 3090222301250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242994 and 1243012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3377 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (146816).

2^1243025 is an apocalyptic number.

It is an amenable number.

1243025 is a deficient number, since it is larger than the sum of its proper divisors (518767).

1243025 is an equidigital number, since it uses as much as digits as its factorization.

1243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120 (or 7115 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1243025 is about 1114.9103102941. The cubic root of 1243025 is about 107.5209982417.

Adding to 1243025 its reverse (5203421), we get a palindrome (6446446).

The spelling of 1243025 in words is "one million, two hundred forty-three thousand, twenty-five".