1235389 has 2 divisors, whose sum is σ = 1235390. Its totient is φ = 1235388.

The previous prime is 1235383. The next prime is 1235417. The reversal of 1235389 is 9835321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1172889 + 62500 = 1083^2 + 250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1235389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1235389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617694 + 617695.

It is an arithmetic number, because the mean of its divisors is an integer number (617695).

2^1235389 is an apocalyptic number.

It is an amenable number.

1235389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235389 is an equidigital number, since it uses as much as digits as its factorization.

1235389 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1235389 is about 1111.4805441392. The cubic root of 1235389 is about 107.3003758831.

The spelling of 1235389 in words is "one million, two hundred thirty-five thousand, three hundred eighty-nine".