1289353 has 4 divisors (see below), whose sum is σ = 1388548. Its totient is φ = 1190160.

The previous prime is 1289341. The next prime is 1289363. The reversal of 1289353 is 3539821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3539821 = 97 ⋅36493.

It can be written as a sum of positive squares in 2 ways, for example, as 344569 + 944784 = 587^2 + 972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1289353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1289303) 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, 49578 + ... + 49603.

It is an arithmetic number, because the mean of its divisors is an integer number (347137).

2^1289353 is an apocalyptic number.

1289353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1289353 is a deficient number, since it is larger than the sum of its proper divisors (99195).

1289353 is an equidigital number, since it uses as much as digits as its factorization.

1289353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99194.

The product of its digits is 6480, while the sum is 31.

The square root of 1289353 is about 1135.4968075693. The cubic root of 1289353 is about 108.8405209235.

The spelling of 1289353 in words is "one million, two hundred eighty-nine thousand, three hundred fifty-three".