129018007 has 2 divisors, whose sum is σ = 129018008. Its totient is φ = 129018006.

The previous prime is 129017963. The next prime is 129018031. The reversal of 129018007 is 700810921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129018007 - 2¹¹ = 129015959 is a prime.

It is a super-2 number, since 2×129018007² = 33291292260504098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129018077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64509003 + 64509004.

It is an arithmetic number, because the mean of its divisors is an integer number (64509004).

Almost surely, 2^129018007 is an apocalyptic number.

129018007 is a deficient number, since it is larger than the sum of its proper divisors (1).

129018007 is an equidigital number, since it uses as much as digits as its factorization.

129018007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 129018007 is about 11358.6093779124. The cubic root of 129018007 is about 505.3009440424.

Adding to 129018007 its reverse (700810921), we get a palindrome (829828928).

The spelling of 129018007 in words is "one hundred twenty-nine million, eighteen thousand, seven".