1002145539971 has 2 divisors, whose sum is σ = 1002145539972. Its totient is φ = 1002145539970.

The previous prime is 1002145539887. The next prime is 1002145540001. The reversal of 1002145539971 is 1799355412001.

It is a happy number.

1002145539971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002145539971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002145535971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501072769985 + 501072769986.

It is an arithmetic number, because the mean of its divisors is an integer number (501072769986).

Almost surely, 2^{1002145539971} is an apocalyptic number.

1002145539971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002145539971 is an equidigital number, since it uses as much as digits as its factorization.

1002145539971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 1002145539971 in words is "one trillion, two billion, one hundred forty-five million, five hundred thirty-nine thousand, nine hundred seventy-one".