1002142387 has 2 divisors, whose sum is σ = 1002142388. Its totient is φ = 1002142386.

The previous prime is 1002142313. The next prime is 1002142409. The reversal of 1002142387 is 7832412001.

It is a strong prime.

It is an emirp because it is prime and its reverse (7832412001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002142387 - 2¹¹ = 1002140339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002842387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501071193 + 501071194.

It is an arithmetic number, because the mean of its divisors is an integer number (501071194).

Almost surely, 2^1002142387 is an apocalyptic number.

1002142387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002142387 is an equidigital number, since it uses as much as digits as its factorization.

1002142387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1002142387 is about 31656.6325909753. The cubic root of 1002142387 is about 1000.7136196259.

Adding to 1002142387 its reverse (7832412001), we get a palindrome (8834554388).

The spelling of 1002142387 in words is "one billion, two million, one hundred forty-two thousand, three hundred eighty-seven".