122345729 has 8 divisors (see below), whose sum is σ = 133594272. Its totient is φ = 111118240.

The previous prime is 122345669. The next prime is 122345761. The reversal of 122345729 is 927543221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122345729 - 2⁸ = 122345473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122345779) 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, 8462 + ... + 17784.

It is an arithmetic number, because the mean of its divisors is an integer number (16699284).

Almost surely, 2^122345729 is an apocalyptic number.

It is an amenable number.

122345729 is a deficient number, since it is larger than the sum of its proper divisors (11248543).

122345729 is a wasteful number, since it uses less digits than its factorization.

122345729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10527.

The product of its digits is 30240, while the sum is 35.

The square root of 122345729 is about 11061.0003616309. Note that the first 3 decimals coincide. The cubic root of 122345729 is about 496.4356228100.

The spelling of 122345729 in words is "one hundred twenty-two million, three hundred forty-five thousand, seven hundred twenty-nine".