129122193 has 8 divisors (see below), whose sum is σ = 176816128. Its totient is φ = 83754864.

The previous prime is 129122173. The next prime is 129122209. The reversal of 129122193 is 391221921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129122193 - 2¹³ = 129114001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129122193.

It is not an unprimeable number, because it can be changed into a prime (129122173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581521 + ... + 581742.

It is an arithmetic number, because the mean of its divisors is an integer number (22102016).

Almost surely, 2^129122193 is an apocalyptic number.

It is an amenable number.

129122193 is a deficient number, since it is larger than the sum of its proper divisors (47693935).

129122193 is a wasteful number, since it uses less digits than its factorization.

129122193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163303.

The product of its digits is 1944, while the sum is 30.

The square root of 129122193 is about 11363.1946652339. The cubic root of 129122193 is about 505.4369227864.

The spelling of 129122193 in words is "one hundred twenty-nine million, one hundred twenty-two thousand, one hundred ninety-three".