6129139903 has 2 divisors, whose sum is σ = 6129139904. Its totient is φ = 6129139902.

The previous prime is 6129139901. The next prime is 6129139927. The reversal of 6129139903 is 3099319216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6129139903 - 2¹ = 6129139901 is a prime.

Together with 6129139901, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6129139903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6129139901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064569951 + 3064569952.

It is an arithmetic number, because the mean of its divisors is an integer number (3064569952).

Almost surely, 2^6129139903 is an apocalyptic number.

6129139903 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129139903 is an equidigital number, since it uses as much as digits as its factorization.

6129139903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 6129139903 is about 78288.8236148686. The cubic root of 6129139903 is about 1830.0649845039.

The spelling of 6129139903 in words is "six billion, one hundred twenty-nine million, one hundred thirty-nine thousand, nine hundred three".