1025243 has 4 divisors (see below), whose sum is σ = 1042680. Its totient is φ = 1007808.

The previous prime is 1025239. The next prime is 1025257. The reversal of 1025243 is 3425201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025243 - 2² = 1025239 is a prime.

It is a super-2 number, since 2×1025243² = 2102246418098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8630 + ... + 8747.

It is an arithmetic number, because the mean of its divisors is an integer number (260670).

2^1025243 is an apocalyptic number.

1025243 is a deficient number, since it is larger than the sum of its proper divisors (17437).

1025243 is an equidigital number, since it uses as much as digits as its factorization.

1025243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436.

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

The square root of 1025243 is about 1012.5428385999. The cubic root of 1025243 is about 100.8344508827.

The spelling of 1025243 in words is "one million, twenty-five thousand, two hundred forty-three".