402143002139 has 2 divisors, whose sum is σ = 402143002140. Its totient is φ = 402143002138.

The previous prime is 402143002109. The next prime is 402143002147. The reversal of 402143002139 is 931200341204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402143002139 is a prime.

It is not a weakly prime, because it can be changed into another prime (402143002109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201071501069 + 201071501070.

It is an arithmetic number, because the mean of its divisors is an integer number (201071501070).

Almost surely, 2^402143002139 is an apocalyptic number.

402143002139 is a deficient number, since it is larger than the sum of its proper divisors (1).

402143002139 is an equidigital number, since it uses as much as digits as its factorization.

402143002139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 402143002139 in words is "four hundred two billion, one hundred forty-three million, two thousand, one hundred thirty-nine".