1289371 has 2 divisors, whose sum is σ = 1289372. Its totient is φ = 1289370.

The previous prime is 1289363. The next prime is 1289381. The reversal of 1289371 is 1739821.

It is a weak prime.

It is an emirp because it is prime and its reverse (1739821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1289371 - 2³ = 1289363 is a prime.

It is a Chen prime.

1289371 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1289341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644685 + 644686.

It is an arithmetic number, because the mean of its divisors is an integer number (644686).

2^1289371 is an apocalyptic number.

1289371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289371 is an equidigital number, since it uses as much as digits as its factorization.

1289371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 1289371 is about 1135.5047335877. The cubic root of 1289371 is about 108.8410274102.

The spelling of 1289371 in words is "one million, two hundred eighty-nine thousand, three hundred seventy-one".