1053439 has 4 divisors (see below), whose sum is σ = 1115424. Its totient is φ = 991456.

The previous prime is 1053421. The next prime is 1053449. The reversal of 1053439 is 9343501.

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

It is a cyclic number.

It is not a de Polignac number, because 1053439 - 2⁵ = 1053407 is a prime.

It is a super-2 number, since 2×1053439² = 2219467453442, which contains 22 as substring.

It is a Duffinian number.

1053439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30967 + ... + 31000.

It is an arithmetic number, because the mean of its divisors is an integer number (278856).

2^1053439 is an apocalyptic number.

1053439 is a deficient number, since it is larger than the sum of its proper divisors (61985).

1053439 is an equidigital number, since it uses as much as digits as its factorization.

1053439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61984.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1053439 is about 1026.3717650053. The cubic root of 1053439 is about 101.7504794251.

The spelling of 1053439 in words is "one million, fifty-three thousand, four hundred thirty-nine".