122740193 has 8 divisors (see below), whose sum is σ = 123529536. Its totient is φ = 121954000.

The previous prime is 122740169. The next prime is 122740201. The reversal of 122740193 is 391047221.

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 122740193 - 2²⁰ = 121691617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122740693) 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, 174743 + ... + 175443.

It is an arithmetic number, because the mean of its divisors is an integer number (15441192).

Almost surely, 2^122740193 is an apocalyptic number.

It is an amenable number.

122740193 is a deficient number, since it is larger than the sum of its proper divisors (789343).

122740193 is an equidigital number, since it uses as much as digits as its factorization.

122740193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 122740193 is about 11078.8173105255. The cubic root of 122740193 is about 496.9685821546.

The spelling of 122740193 in words is "one hundred twenty-two million, seven hundred forty thousand, one hundred ninety-three".