129284033 has 2 divisors, whose sum is σ = 129284034. Its totient is φ = 129284032.

The previous prime is 129284021. The next prime is 129284069. The reversal of 129284033 is 330482921.

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., 121705024 + 7579009 = 11032^2 + 2753^2 .

It is an emirp because it is prime and its reverse (330482921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129284033 - 2⁴ = 129284017 is a prime.

It is a super-2 number, since 2×129284033² = 33428722377490178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129284093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64642016 + 64642017.

It is an arithmetic number, because the mean of its divisors is an integer number (64642017).

Almost surely, 2^129284033 is an apocalyptic number.

It is an amenable number.

129284033 is a deficient number, since it is larger than the sum of its proper divisors (1).

129284033 is an equidigital number, since it uses as much as digits as its factorization.

129284033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 129284033 is about 11370.3136720145. The cubic root of 129284033 is about 505.6480038764.

It can be divided in two parts, 12928 and 4033, that added together give a palindrome (16961).

The spelling of 129284033 in words is "one hundred twenty-nine million, two hundred eighty-four thousand, thirty-three".