129041357 has 2 divisors, whose sum is σ = 129041358. Its totient is φ = 129041356.

The previous prime is 129041347. The next prime is 129041371. The reversal of 129041357 is 753140921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106894921 + 22146436 = 10339^2 + 4706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129041357 is a prime.

It is equal to p_7326905 and since 129041357 and 7326905 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 (129041347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64520678 + 64520679.

It is an arithmetic number, because the mean of its divisors is an integer number (64520679).

Almost surely, 2^129041357 is an apocalyptic number.

It is an amenable number.

129041357 is a deficient number, since it is larger than the sum of its proper divisors (1).

129041357 is an equidigital number, since it uses as much as digits as its factorization.

129041357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 129041357 is about 11359.6371861077. The cubic root of 129041357 is about 505.3314257444.

The spelling of 129041357 in words is "one hundred twenty-nine million, forty-one thousand, three hundred fifty-seven".