1045197 has 8 divisors (see below), whose sum is σ = 1548480. Its totient is φ = 696780.

The previous prime is 1045193. The next prime is 1045199. The reversal of 1045197 is 7915401.

It is not a de Polignac number, because 1045197 - 2² = 1045193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 38711 = 1045197 / (1 + 0 + 4 + 5 + 1 + 9 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1045197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19329 + ... + 19382.

It is an arithmetic number, because the mean of its divisors is an integer number (193560).

2^1045197 is an apocalyptic number.

It is an amenable number.

1045197 is a deficient number, since it is larger than the sum of its proper divisors (503283).

1045197 is an equidigital number, since it uses as much as digits as its factorization.

1045197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38720 (or 38714 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1045197 is about 1022.3487663219. The cubic root of 1045197 is about 101.4844225328.

The spelling of 1045197 in words is "one million, forty-five thousand, one hundred ninety-seven".