1002542141 has 2 divisors, whose sum is σ = 1002542142. Its totient is φ = 1002542140.

The previous prime is 1002542113. The next prime is 1002542221. The reversal of 1002542141 is 1412452001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780978916 + 221563225 = 27946^2 + 14885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002542141 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501271070 + 501271071.

It is an arithmetic number, because the mean of its divisors is an integer number (501271071).

Almost surely, 2^1002542141 is an apocalyptic number.

It is an amenable number.

1002542141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002542141 is an equidigital number, since it uses as much as digits as its factorization.

1002542141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1002542141 is about 31662.9458673700. The cubic root of 1002542141 is about 1000.8466632923.

Adding to 1002542141 its reverse (1412452001), we get a palindrome (2414994142).

The spelling of 1002542141 in words is "one billion, two million, five hundred forty-two thousand, one hundred forty-one".