129316357 has 2 divisors, whose sum is σ = 129316358. Its totient is φ = 129316356.

The previous prime is 129316309. The next prime is 129316367. The reversal of 129316357 is 753613921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129072321 + 244036 = 11361^2 + 494^2 .

It is an emirp because it is prime and its reverse (753613921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129316357 - 2¹¹ = 129314309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129316367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64658178 + 64658179.

It is an arithmetic number, because the mean of its divisors is an integer number (64658179).

Almost surely, 2^129316357 is an apocalyptic number.

It is an amenable number.

129316357 is a deficient number, since it is larger than the sum of its proper divisors (1).

129316357 is an equidigital number, since it uses as much as digits as its factorization.

129316357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 129316357 is about 11371.7350039473. The cubic root of 129316357 is about 505.6901415988.

The spelling of 129316357 in words is "one hundred twenty-nine million, three hundred sixteen thousand, three hundred fifty-seven".