129862793 has 2 divisors, whose sum is σ = 129862794. Its totient is φ = 129862792.

The previous prime is 129862787. The next prime is 129862819. The reversal of 129862793 is 397268921.

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., 110397049 + 19465744 = 10507^2 + 4412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129862793 is a prime.

It is not a weakly prime, because it can be changed into another prime (129832793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64931396 + 64931397.

It is an arithmetic number, because the mean of its divisors is an integer number (64931397).

Almost surely, 2^129862793 is an apocalyptic number.

It is an amenable number.

129862793 is a deficient number, since it is larger than the sum of its proper divisors (1).

129862793 is an equidigital number, since it uses as much as digits as its factorization.

129862793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 129862793 is about 11395.7357375467. The cubic root of 129862793 is about 506.4014179390.

The spelling of 129862793 in words is "one hundred twenty-nine million, eight hundred sixty-two thousand, seven hundred ninety-three".