1252389 has 8 divisors (see below), whose sum is σ = 1681120. Its totient is φ = 829296.

The previous prime is 1252357. The next prime is 1252399. The reversal of 1252389 is 9832521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252389 - 2⁵ = 1252357 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859 + ... + 1800.

It is an arithmetic number, because the mean of its divisors is an integer number (210140).

2^1252389 is an apocalyptic number.

It is an amenable number.

1252389 is a deficient number, since it is larger than the sum of its proper divisors (428731).

1252389 is a wasteful number, since it uses less digits than its factorization.

1252389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its digits is 4320, while the sum is 30.

The square root of 1252389 is about 1119.1018720385. The cubic root of 1252389 is about 107.7903167550.

The spelling of 1252389 in words is "one million, two hundred fifty-two thousand, three hundred eighty-nine".