122742086 has 8 divisors (see below), whose sum is σ = 184291464. Its totient is φ = 61311600.

The previous prime is 122742047. The next prime is 122742101. The reversal of 122742086 is 680247221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27095 + ... + 31298.

It is an arithmetic number, because the mean of its divisors is an integer number (23036433).

Almost surely, 2^122742086 is an apocalyptic number.

122742086 is a deficient number, since it is larger than the sum of its proper divisors (61549378).

122742086 is a wasteful number, since it uses less digits than its factorization.

122742086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59446.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 122742086 is about 11078.9027435031. The cubic root of 122742086 is about 496.9711370273.

The spelling of 122742086 in words is "one hundred twenty-two million, seven hundred forty-two thousand, eighty-six".