1300997 has 2 divisors, whose sum is σ = 1300998. Its totient is φ = 1300996.
The previous prime is 1300979. The next prime is 1301011. The reversal of 1300997 is 7990031.
Together with previous prime (1300979) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 662596 + 638401 = 814^2 + 799^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1300997 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1300907) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650498 + 650499.
It is an arithmetic number, because the mean of its divisors is an integer number (650499).
21300997 is an apocalyptic number.
It is an amenable number.
1300997 is a deficient number, since it is larger than the sum of its proper divisors (1).
1300997 is an equidigital number, since it uses as much as digits as its factorization.
1300997 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1701, while the sum is 29.
The square root of 1300997 is about 1140.6125547266. The cubic root of 1300997 is about 109.1671816562.
The spelling of 1300997 in words is "one million, three hundred thousand, nine hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.058 sec. • engine limits •