1002011245 has 8 divisors (see below), whose sum is σ = 1234911384. Its totient is φ = 779943744.

The previous prime is 1002011239. The next prime is 1002011249. The reversal of 1002011245 is 5421102001.

It can be written as a sum of positive squares in 4 ways, for example, as 64304361 + 937706884 = 8019^2 + 30622^2 .

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 1002011245 - 2¹³ = 1002003053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002011249) 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, 2707954 + ... + 2708323.

It is an arithmetic number, because the mean of its divisors is an integer number (154363923).

Almost surely, 2^1002011245 is an apocalyptic number.

It is an amenable number.

1002011245 is a deficient number, since it is larger than the sum of its proper divisors (232900139).

1002011245 is an equidigital number, since it uses as much as digits as its factorization.

1002011245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416319.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1002011245 is about 31654.5612037191. The cubic root of 1002011245 is about 1000.6699660453.

Adding to 1002011245 its reverse (5421102001), we get a palindrome (6423113246).

The spelling of 1002011245 in words is "one billion, two million, eleven thousand, two hundred forty-five".