129159907 has 2 divisors, whose sum is σ = 129159908. Its totient is φ = 129159906.

The previous prime is 129159883. The next prime is 129159913. The reversal of 129159907 is 709951921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129159907 - 2¹¹ = 129157859 is a prime.

It is not a weakly prime, because it can be changed into another prime (129159937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64579953 + 64579954.

It is an arithmetic number, because the mean of its divisors is an integer number (64579954).

Almost surely, 2^129159907 is an apocalyptic number.

129159907 is a deficient number, since it is larger than the sum of its proper divisors (1).

129159907 is an equidigital number, since it uses as much as digits as its factorization.

129159907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 129159907 is about 11364.8540245795. The cubic root of 129159907 is about 505.4861273217.

It can be divided in two parts, 12915 and 9907, that added together give a palindrome (22822).

The spelling of 129159907 in words is "one hundred twenty-nine million, one hundred fifty-nine thousand, nine hundred seven".