129914933 has 4 divisors (see below), whose sum is σ = 132044748. Its totient is φ = 127785120.

The previous prime is 129914921. The next prime is 129914957. The reversal of 129914933 is 339419921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 339419921 = 61 ⋅5564261.

It can be written as a sum of positive squares in 2 ways, for example, as 4318084 + 125596849 = 2078^2 + 11207^2 .

It is a cyclic number.

It is not a de Polignac number, because 129914933 - 2²⁰ = 128866357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129914233) 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, 1064816 + ... + 1064937.

It is an arithmetic number, because the mean of its divisors is an integer number (33011187).

Almost surely, 2^129914933 is an apocalyptic number.

It is an amenable number.

129914933 is a deficient number, since it is larger than the sum of its proper divisors (2129815).

129914933 is an equidigital number, since it uses as much as digits as its factorization.

129914933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129814.

The product of its digits is 52488, while the sum is 41.

The square root of 129914933 is about 11398.0232058020. The cubic root of 129914933 is about 506.4691823756.

The spelling of 129914933 in words is "one hundred twenty-nine million, nine hundred fourteen thousand, nine hundred thirty-three".