122729946 has 16 divisors (see below), whose sum is σ = 246818208. Its totient is φ = 40683600.

The previous prime is 122729939. The next prime is 122729951. The reversal of 122729946 is 649927221.

It is a junction number, because it is equal to n+sod(n) for n = 122729898 and 122729907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55420 + ... + 57591.

It is an arithmetic number, because the mean of its divisors is an integer number (15426138).

Almost surely, 2^122729946 is an apocalyptic number.

122729946 is an abundant number, since it is smaller than the sum of its proper divisors (124088262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122729946 is a wasteful number, since it uses less digits than its factorization.

122729946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113197.

The product of its digits is 108864, while the sum is 42.

The square root of 122729946 is about 11078.3548417624. The cubic root of 122729946 is about 496.9547519152.

The spelling of 122729946 in words is "one hundred twenty-two million, seven hundred twenty-nine thousand, nine hundred forty-six".