129466801 has 2 divisors, whose sum is σ = 129466802. Its totient is φ = 129466800.

The previous prime is 129466789. The next prime is 129466837. The reversal of 129466801 is 108664921.

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., 129390625 + 76176 = 11375^2 + 276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129466801 is a prime.

It is a super-2 number, since 2×129466801² = 33523305122347202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129466891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64733400 + 64733401.

It is an arithmetic number, because the mean of its divisors is an integer number (64733401).

Almost surely, 2^129466801 is an apocalyptic number.

It is an amenable number.

129466801 is a deficient number, since it is larger than the sum of its proper divisors (1).

129466801 is an equidigital number, since it uses as much as digits as its factorization.

129466801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 129466801 is about 11378.3479029251. The cubic root of 129466801 is about 505.8861687835.

The spelling of 129466801 in words is "one hundred twenty-nine million, four hundred sixty-six thousand, eight hundred one".