122172086 has 8 divisors (see below), whose sum is σ = 184382904. Its totient is φ = 60711120.

The previous prime is 122172077. The next prime is 122172091. The reversal of 122172086 is 680271221.

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

It is a Curzon number.

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, 187055 + ... + 187706.

It is an arithmetic number, because the mean of its divisors is an integer number (23047863).

Almost surely, 2^122172086 is an apocalyptic number.

122172086 is a deficient number, since it is larger than the sum of its proper divisors (62210818).

122172086 is a wasteful number, since it uses less digits than its factorization.

122172086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374926.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 122172086 is about 11053.1482393027. The cubic root of 122172086 is about 496.2006510197.

The spelling of 122172086 in words is "one hundred twenty-two million, one hundred seventy-two thousand, eighty-six".