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129607 is a prime number
BaseRepresentation
bin11111101001000111
320120210021
4133221013
513121412
62440011
71046602
oct375107
9216707
10129607
1189415
1263007
1346cba
1435339
1528607
hex1fa47

129607 has 2 divisors, whose sum is σ = 129608. Its totient is φ = 129606.

The previous prime is 129593. The next prime is 129629. The reversal of 129607 is 706921.

It is a weak prime.

It is an emirp because it is prime and its reverse (706921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-129607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64803 + 64804.

It is an arithmetic number, because the mean of its divisors is an integer number (64804).

129607 is a Friedman number, since it can be written as 90^2*16+7, using all its digits and the basic arithmetic operations.

2129607 is an apocalyptic number.

129607 is a deficient number, since it is larger than the sum of its proper divisors (1).

129607 is an equidigital number, since it uses as much as digits as its factorization.

129607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 129607 is about 360.0097220909. The cubic root of 129607 is about 50.6068710172.

The spelling of 129607 in words is "one hundred twenty-nine thousand, six hundred seven".