1439013 has 8 divisors (see below), whose sum is σ = 1937728. Its totient is φ = 949824.

The previous prime is 1438993. The next prime is 1439017. The reversal of 1439013 is 3109341.

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

It is not a de Polignac number, because 1439013 - 2⁹ = 1438501 is a prime.

It is an Ulam number.

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 (1439017) 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, 2020 + ... + 2637.

It is an arithmetic number, because the mean of its divisors is an integer number (242216).

2^1439013 is an apocalyptic number.

It is an amenable number.

1439013 is a deficient number, since it is larger than the sum of its proper divisors (498715).

1439013 is a wasteful number, since it uses less digits than its factorization.

1439013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1439013 is about 1199.5886795064. The cubic root of 1439013 is about 112.8985174978.

The spelling of 1439013 in words is "one million, four hundred thirty-nine thousand, thirteen".