129670337 has 2 divisors, whose sum is σ = 129670338. Its totient is φ = 129670336.

The previous prime is 129670313. The next prime is 129670351. The reversal of 129670337 is 733076921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127599616 + 2070721 = 11296^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 129670337 - 2¹⁶ = 129604801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129670337.

It is not a weakly prime, because it can be changed into another prime (129670357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64835168 + 64835169.

It is an arithmetic number, because the mean of its divisors is an integer number (64835169).

Almost surely, 2^129670337 is an apocalyptic number.

It is an amenable number.

129670337 is a deficient number, since it is larger than the sum of its proper divisors (1).

129670337 is an equidigital number, since it uses as much as digits as its factorization.

129670337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 129670337 is about 11387.2883953995. The cubic root of 129670337 is about 506.1511328143.

The spelling of 129670337 in words is "one hundred twenty-nine million, six hundred seventy thousand, three hundred thirty-seven".