1004001245 has 8 divisors (see below), whose sum is σ = 1297478616. Its totient is φ = 741416256.

The previous prime is 1004001239. The next prime is 1004001259. The reversal of 1004001245 is 5421004001.

It can be written as a sum of positive squares in 4 ways, for example, as 56715961 + 947285284 = 7531^2 + 30778^2 .

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 1004001245 - 2¹⁸ = 1003739101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7723022 + ... + 7723151.

It is an arithmetic number, because the mean of its divisors is an integer number (162184827).

Almost surely, 2^1004001245 is an apocalyptic number.

It is an amenable number.

1004001245 is a deficient number, since it is larger than the sum of its proper divisors (293477371).

1004001245 is a wasteful number, since it uses less digits than its factorization.

1004001245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15446191.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1004001245 is about 31685.9786814294. The cubic root of 1004001245 is about 1001.3319733925.

Adding to 1004001245 its reverse (5421004001), we get a palindrome (6425005246).

The spelling of 1004001245 in words is "one billion, four million, one thousand, two hundred forty-five".