1301897 has 4 divisors (see below), whose sum is σ = 1346820. Its totient is φ = 1256976.

The previous prime is 1301893. The next prime is 1301903. The reversal of 1301897 is 7981031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7981031 = 83 ⋅96157.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 614656 = 829^2 + 784^2 .

It is not a de Polignac number, because 1301897 - 2² = 1301893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 44893 = 1301897 / (1 + 3 + 0 + 1 + 8 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301893) 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, 22418 + ... + 22475.

It is an arithmetic number, because the mean of its divisors is an integer number (336705).

2^1301897 is an apocalyptic number.

It is an amenable number.

1301897 is a deficient number, since it is larger than the sum of its proper divisors (44923).

1301897 is an equidigital number, since it uses as much as digits as its factorization.

1301897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44922.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1301897 is about 1141.0070113720. The cubic root of 1301897 is about 109.1923489744.

The spelling of 1301897 in words is "one million, three hundred one thousand, eight hundred ninety-seven".