129379753 has 2 divisors, whose sum is σ = 129379754. Its totient is φ = 129379752.

The previous prime is 129379739. The next prime is 129379763. The reversal of 129379753 is 357973921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81866304 + 47513449 = 9048^2 + 6893^2 .

It is an emirp because it is prime and its reverse (357973921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129379753 - 2²¹ = 127282601 is a prime.

It is not a weakly prime, because it can be changed into another prime (129379763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64689876 + 64689877.

It is an arithmetic number, because the mean of its divisors is an integer number (64689877).

Almost surely, 2^129379753 is an apocalyptic number.

It is an amenable number.

129379753 is a deficient number, since it is larger than the sum of its proper divisors (1).

129379753 is an equidigital number, since it uses as much as digits as its factorization.

129379753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 46.

The square root of 129379753 is about 11374.5220998511. The cubic root of 129379753 is about 505.7727645440.

The spelling of 129379753 in words is "one hundred twenty-nine million, three hundred seventy-nine thousand, seven hundred fifty-three".