122741857 has 8 divisors (see below), whose sum is σ = 140406336. Its totient is φ = 105109872.

The previous prime is 122741849. The next prime is 122741873. The reversal of 122741857 is 758147221.

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

It is not a de Polignac number, because 122741857 - 2³ = 122741849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122741897) 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, 603 + ... + 15679.

It is an arithmetic number, because the mean of its divisors is an integer number (17550792).

Almost surely, 2^122741857 is an apocalyptic number.

It is an amenable number.

122741857 is a deficient number, since it is larger than the sum of its proper divisors (17664479).

122741857 is a wasteful number, since it uses less digits than its factorization.

122741857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16247.

The product of its digits is 31360, while the sum is 37.

The square root of 122741857 is about 11078.8924085398. The cubic root of 122741857 is about 496.9708279606.

The spelling of 122741857 in words is "one hundred twenty-two million, seven hundred forty-one thousand, eight hundred fifty-seven".