1040245 has 4 divisors (see below), whose sum is σ = 1248300. Its totient is φ = 832192.

The previous prime is 1040227. The next prime is 1040311. The reversal of 1040245 is 5420401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420401 = 7 ⋅774343.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 269361 = 878^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040245 - 2⁹ = 1039733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104020 + ... + 104029.

It is an arithmetic number, because the mean of its divisors is an integer number (312075).

2^1040245 is an apocalyptic number.

It is an amenable number.

1040245 is a deficient number, since it is larger than the sum of its proper divisors (208055).

1040245 is an equidigital number, since it uses as much as digits as its factorization.

1040245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208054.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1040245 is about 1019.9240167777. The cubic root of 1040245 is about 101.3238956565.

Adding to 1040245 its reverse (5420401), we get a palindrome (6460646).

The spelling of 1040245 in words is "one million, forty thousand, two hundred forty-five".