129030757 has 2 divisors, whose sum is σ = 129030758. Its totient is φ = 129030756.

The previous prime is 129030739. The next prime is 129030761. The reversal of 129030757 is 757030921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117700801 + 11329956 = 10849^2 + 3366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129030757 is a prime.

It is equal to p_7326367 and since 129030757 and 7326367 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129030257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64515378 + 64515379.

It is an arithmetic number, because the mean of its divisors is an integer number (64515379).

Almost surely, 2^129030757 is an apocalyptic number.

It is an amenable number.

129030757 is a deficient number, since it is larger than the sum of its proper divisors (1).

129030757 is an equidigital number, since it uses as much as digits as its factorization.

129030757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 129030757 is about 11359.1706123291. The cubic root of 129030757 is about 505.3175886824.

The spelling of 129030757 in words is "one hundred twenty-nine million, thirty thousand, seven hundred fifty-seven".