1302997 has 4 divisors (see below), whose sum is σ = 1307916. Its totient is φ = 1298080.

The previous prime is 1302991. The next prime is 1303009. The reversal of 1302997 is 7992031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 599076 + 703921 = 774^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302997 - 2⁷ = 1302869 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1302997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (326979).

2^1302997 is an apocalyptic number.

It is an amenable number.

1302997 is a deficient number, since it is larger than the sum of its proper divisors (4919).

1302997 is an equidigital number, since it uses as much as digits as its factorization.

1302997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1302997 is about 1141.4889399377. The cubic root of 1302997 is about 109.2230932836.

The spelling of 1302997 in words is "one million, three hundred two thousand, nine hundred ninety-seven".