129314191 has 4 divisors (see below), whose sum is σ = 129393432. Its totient is φ = 129234952.

The previous prime is 129314177. The next prime is 129314197. The reversal of 129314191 is 191413921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191413921 = 199 ⋅961879.

It is a cyclic number.

It is not a de Polignac number, because 129314191 - 2¹³ = 129305999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129314197) 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 in 3 ways as a sum of consecutive naturals, for example, 37120 + ... + 40453.

It is an arithmetic number, because the mean of its divisors is an integer number (32348358).

Almost surely, 2^129314191 is an apocalyptic number.

129314191 is a deficient number, since it is larger than the sum of its proper divisors (79241).

129314191 is an equidigital number, since it uses as much as digits as its factorization.

129314191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79240.

The product of its digits is 1944, while the sum is 31.

The square root of 129314191 is about 11371.6397674214. The cubic root of 129314191 is about 505.6873182103.

The spelling of 129314191 in words is "one hundred twenty-nine million, three hundred fourteen thousand, one hundred ninety-one".