129670313 has 2 divisors, whose sum is σ = 129670314. Its totient is φ = 129670312.

The previous prime is 129670301. The next prime is 129670337. The reversal of 129670313 is 313076921.

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., 82500889 + 47169424 = 9083^2 + 6868^2 .

It is a cyclic number.

It is not a de Polignac number, because 129670313 - 2¹² = 129666217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129670313.

It is not a weakly prime, because it can be changed into another prime (129670213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64835156 + 64835157.

It is an arithmetic number, because the mean of its divisors is an integer number (64835157).

Almost surely, 2^129670313 is an apocalyptic number.

It is an amenable number.

129670313 is a deficient number, since it is larger than the sum of its proper divisors (1).

129670313 is an equidigital number, since it uses as much as digits as its factorization.

129670313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 129670313 is about 11387.2873415928. The cubic root of 129670313 is about 506.1511015873.

The spelling of 129670313 in words is "one hundred twenty-nine million, six hundred seventy thousand, three hundred thirteen".