1044001013 has 8 divisors (see below), whose sum is σ = 1140303936. Its totient is φ = 947930400.

The previous prime is 1044000973. The next prime is 1044001051. The reversal of 1044001013 is 3101004401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1044001013 - 2⁶ = 1044000949 is a prime.

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 (1044001813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48608 + ... + 66713.

It is an arithmetic number, because the mean of its divisors is an integer number (142537992).

Almost surely, 2^1044001013 is an apocalyptic number.

It is an amenable number.

1044001013 is a deficient number, since it is larger than the sum of its proper divisors (96302923).

1044001013 is a wasteful number, since it uses less digits than its factorization.

1044001013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116155.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1044001013 is about 32311.0045185847. The cubic root of 1044001013 is about 1014.4569925082.

Adding to 1044001013 its reverse (3101004401), we get a palindrome (4145005414).

The spelling of 1044001013 in words is "one billion, forty-four million, one thousand, thirteen".