1002753121 has 4 divisors (see below), whose sum is σ = 1014020100. Its totient is φ = 991486144.

The previous prime is 1002753119. The next prime is 1002753133. The reversal of 1002753121 is 1213572001.

It is a happy number.

1002753121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132503121 + 870250000 = 11511^2 + 29500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002753121 - 2¹ = 1002753119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002753092 and 1002753101.

It is not an unprimeable number, because it can be changed into a prime (1002753181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633356 + ... + 5633533.

It is an arithmetic number, because the mean of its divisors is an integer number (253505025).

Almost surely, 2^1002753121 is an apocalyptic number.

It is an amenable number.

1002753121 is a deficient number, since it is larger than the sum of its proper divisors (11266979).

1002753121 is an equidigital number, since it uses as much as digits as its factorization.

1002753121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266978.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1002753121 is about 31666.2773467296. The cubic root of 1002753121 is about 1000.9168660996.

The spelling of 1002753121 in words is "one billion, two million, seven hundred fifty-three thousand, one hundred twenty-one".