129762851 has 2 divisors, whose sum is σ = 129762852. Its totient is φ = 129762850.

The previous prime is 129762839. The next prime is 129762877. The reversal of 129762851 is 158267921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129762851 - 2¹⁴ = 129746467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129762799 and 129762808.

It is not a weakly prime, because it can be changed into another prime (129762821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64881425 + 64881426.

It is an arithmetic number, because the mean of its divisors is an integer number (64881426).

Almost surely, 2^129762851 is an apocalyptic number.

129762851 is a deficient number, since it is larger than the sum of its proper divisors (1).

129762851 is an equidigital number, since it uses as much as digits as its factorization.

129762851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 129762851 is about 11391.3498322192. The cubic root of 129762851 is about 506.2714762824.

The spelling of 129762851 in words is "one hundred twenty-nine million, seven hundred sixty-two thousand, eight hundred fifty-one".