122189146 has 8 divisors (see below), whose sum is σ = 183698784. Its totient is φ = 60956220.

The previous prime is 122189131. The next prime is 122189147. The reversal of 122189146 is 641981221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (122189147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68070 + ... + 69841.

It is an arithmetic number, because the mean of its divisors is an integer number (22962348).

Almost surely, 2^122189146 is an apocalyptic number.

122189146 is a deficient number, since it is larger than the sum of its proper divisors (61509638).

122189146 is a wasteful number, since it uses less digits than its factorization.

122189146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138356.

The product of its digits is 6912, while the sum is 34.

The square root of 122189146 is about 11053.9199381939. The cubic root of 122189146 is about 496.2237462820.

The spelling of 122189146 in words is "one hundred twenty-two million, one hundred eighty-nine thousand, one hundred forty-six".