129980633 has 2 divisors, whose sum is σ = 129980634. Its totient is φ = 129980632.

The previous prime is 129980621. The next prime is 129980651. The reversal of 129980633 is 336089921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123365449 + 6615184 = 11107^2 + 2572^2 .

It is a cyclic number.

It is not a de Polignac number, because 129980633 - 2¹⁰ = 129979609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129980663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64990316 + 64990317.

It is an arithmetic number, because the mean of its divisors is an integer number (64990317).

Almost surely, 2^129980633 is an apocalyptic number.

It is an amenable number.

129980633 is a deficient number, since it is larger than the sum of its proper divisors (1).

129980633 is an equidigital number, since it uses as much as digits as its factorization.

129980633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 129980633 is about 11400.9049202245. The cubic root of 129980633 is about 506.5545444323.

The spelling of 129980633 in words is "one hundred twenty-nine million, nine hundred eighty thousand, six hundred thirty-three".