1002402543 has 8 divisors (see below), whose sum is σ = 1341738288. Its totient is φ = 665667584.

The previous prime is 1002402529. The next prime is 1002402593. The reversal of 1002402543 is 3452042001.

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 1002402543 - 2⁸ = 1002402287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002402593) by changing a digit.

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, 649296 + ... + 650837.

It is an arithmetic number, because the mean of its divisors is an integer number (167717286).

Almost surely, 2^1002402543 is an apocalyptic number.

1002402543 is a deficient number, since it is larger than the sum of its proper divisors (339335745).

1002402543 is a wasteful number, since it uses less digits than its factorization.

1002402543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300393.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1002402543 is about 31660.7413526594. The cubic root of 1002402543 is about 1000.8002071644.

Adding to 1002402543 its reverse (3452042001), we get a palindrome (4454444544).

The spelling of 1002402543 in words is "one billion, two million, four hundred two thousand, five hundred forty-three".