1253389 has 4 divisors (see below), whose sum is σ = 1258524. Its totient is φ = 1248256.

The previous prime is 1253381. The next prime is 1253401. The reversal of 1253389 is 9833521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 366025 = 942^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253389 - 2³ = 1253381 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1253389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2182 + ... + 2695.

It is an arithmetic number, because the mean of its divisors is an integer number (314631).

2^1253389 is an apocalyptic number.

It is an amenable number.

1253389 is a deficient number, since it is larger than the sum of its proper divisors (5135).

1253389 is an equidigital number, since it uses as much as digits as its factorization.

1253389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134.

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

The square root of 1253389 is about 1119.5485697369. The cubic root of 1253389 is about 107.8189983761.

The spelling of 1253389 in words is "one million, two hundred fifty-three thousand, three hundred eighty-nine".