1045897 has 4 divisors (see below), whose sum is σ = 1051920. Its totient is φ = 1039876.

The previous prime is 1045859. The next prime is 1045903. The reversal of 1045897 is 7985401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7985401 = 43 ⋅185707.

It is a cyclic number.

It is not a de Polignac number, because 1045897 - 2¹¹ = 1043849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045397) 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, 2743 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (262980).

2^1045897 is an apocalyptic number.

It is an amenable number.

1045897 is a deficient number, since it is larger than the sum of its proper divisors (6023).

1045897 is an equidigital number, since it uses as much as digits as its factorization.

1045897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1045897 is about 1022.6910579447. The cubic root of 1045897 is about 101.5070732046.

The spelling of 1045897 in words is "one million, forty-five thousand, eight hundred ninety-seven".