1297045 has 8 divisors (see below), whose sum is σ = 1567800. Its totient is φ = 1030080.

The previous prime is 1297027. The next prime is 1297057. The reversal of 1297045 is 5407921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 93636 + 1203409 = 306^2 + 1097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1297045 - 2⁵ = 1297013 is a prime.

1297045 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (195975).

2^1297045 is an apocalyptic number.

It is an amenable number.

1297045 is a deficient number, since it is larger than the sum of its proper divisors (270755).

1297045 is a wasteful number, since it uses less digits than its factorization.

1297045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1297045 is about 1138.8788346440. The cubic root of 1297045 is about 109.0565315710.

The spelling of 1297045 in words is "one million, two hundred ninety-seven thousand, forty-five".