1002542113 has 2 divisors, whose sum is σ = 1002542114. Its totient is φ = 1002542112.

The previous prime is 1002542111. The next prime is 1002542141. The reversal of 1002542113 is 3112452001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 819562384 + 182979729 = 28628^2 + 13527^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002542113 - 2¹ = 1002542111 is a prime.

Together with 1002542111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1002542111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501271056 + 501271057.

It is an arithmetic number, because the mean of its divisors is an integer number (501271057).

Almost surely, 2^1002542113 is an apocalyptic number.

It is an amenable number.

1002542113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002542113 is an equidigital number, since it uses as much as digits as its factorization.

1002542113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1002542113 is about 31662.9454252127. The cubic root of 1002542113 is about 1000.8466539747.

Adding to 1002542113 its reverse (3112452001), we get a palindrome (4114994114).

The spelling of 1002542113 in words is "one billion, two million, five hundred forty-two thousand, one hundred thirteen".