129235033 has 2 divisors, whose sum is σ = 129235034. Its totient is φ = 129235032.

The previous prime is 129234983. The next prime is 129235069. The reversal of 129235033 is 330532921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 42614784 = 9307^2 + 6528^2 .

It is a cyclic number.

It is not a de Polignac number, because 129235033 - 2¹³ = 129226841 is a prime.

It is a super-2 number, since 2×129235033² = 33403387509022178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129234992 and 129235010.

It is not a weakly prime, because it can be changed into another prime (129235133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64617516 + 64617517.

It is an arithmetic number, because the mean of its divisors is an integer number (64617517).

Almost surely, 2^129235033 is an apocalyptic number.

It is an amenable number.

129235033 is a deficient number, since it is larger than the sum of its proper divisors (1).

129235033 is an equidigital number, since it uses as much as digits as its factorization.

129235033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 129235033 is about 11368.1587339375. The cubic root of 129235033 is about 505.5841138443.

Adding to 129235033 its reverse (330532921), we get a palindrome (459767954).

It can be divided in two parts, 12923 and 5033, that added together give a square (17956 = 134²).

The spelling of 129235033 in words is "one hundred twenty-nine million, two hundred thirty-five thousand, thirty-three".