6935143129 has 2 divisors, whose sum is σ = 6935143130. Its totient is φ = 6935143128.

The previous prime is 6935143123. The next prime is 6935143169. The reversal of 6935143129 is 9213415396.

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., 5649777225 + 1285365904 = 75165^2 + 35852^2 .

It is a cyclic number.

It is not a de Polignac number, because 6935143129 - 2⁷ = 6935143001 is a prime.

It is not a weakly prime, because it can be changed into another prime (6935143123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3467571564 + 3467571565.

It is an arithmetic number, because the mean of its divisors is an integer number (3467571565).

Almost surely, 2^6935143129 is an apocalyptic number.

It is an amenable number.

6935143129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6935143129 is an equidigital number, since it uses as much as digits as its factorization.

6935143129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 43.

The square root of 6935143129 is about 83277.5067410162. The cubic root of 6935143129 is about 1907.0049024860.

The spelling of 6935143129 in words is "six billion, nine hundred thirty-five million, one hundred forty-three thousand, one hundred twenty-nine".