1002131297 has 16 divisors (see below), whose sum is σ = 1036875840. Its totient is φ = 967982400.

The previous prime is 1002131239. The next prime is 1002131329. The reversal of 1002131297 is 7921312001.

It is a cyclic number.

It is not a de Polignac number, because 1002131297 - 2¹⁶ = 1002065761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002136297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575979 + ... + 2576367.

It is an arithmetic number, because the mean of its divisors is an integer number (64804740).

Almost surely, 2^1002131297 is an apocalyptic number.

It is an amenable number.

1002131297 is a deficient number, since it is larger than the sum of its proper divisors (34744543).

1002131297 is a wasteful number, since it uses less digits than its factorization.

1002131297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1002131297 is about 31656.4574297251. The cubic root of 1002131297 is about 1000.7099282160.

Adding to 1002131297 its reverse (7921312001), we get a palindrome (8923443298).

The spelling of 1002131297 in words is "one billion, two million, one hundred thirty-one thousand, two hundred ninety-seven".