129190933 has 4 divisors (see below), whose sum is σ = 129254188. Its totient is φ = 129127680.

The previous prime is 129190927. The next prime is 129190949. The reversal of 129190933 is 339091921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53553124 + 75637809 = 7318^2 + 8697^2 .

It is a cyclic number.

It is not a de Polignac number, because 129190933 - 2¹³ = 129182741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129190892 and 129190901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129190903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28458 + ... + 32683.

It is an arithmetic number, because the mean of its divisors is an integer number (32313547).

Almost surely, 2^129190933 is an apocalyptic number.

It is an amenable number.

129190933 is a deficient number, since it is larger than the sum of its proper divisors (63255).

129190933 is an equidigital number, since it uses as much as digits as its factorization.

129190933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63254.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 129190933 is about 11366.2189403513. The cubic root of 129190933 is about 505.5265990061.

The spelling of 129190933 in words is "one hundred twenty-nine million, one hundred ninety thousand, nine hundred thirty-three".