122671816 has 8 divisors (see below), whose sum is σ = 230009670. Its totient is φ = 61335904.

The previous prime is 122671807. The next prime is 122671817. The reversal of 122671816 is 618176221.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 42640900 = 8946^2 + 6530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (122671817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7666981 + ... + 7666996.

Almost surely, 2^122671816 is an apocalyptic number.

It is an amenable number.

122671816 is a deficient number, since it is larger than the sum of its proper divisors (107337854).

122671816 is a wasteful number, since it uses less digits than its factorization.

122671816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15333983 (or 15333979 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 122671816 is about 11075.7309465335. The cubic root of 122671816 is about 496.8762800542.

The spelling of 122671816 in words is "one hundred twenty-two million, six hundred seventy-one thousand, eight hundred sixteen".