122646772 has 12 divisors (see below), whose sum is σ = 227257380. Its totient is φ = 57716096.

The previous prime is 122646761. The next prime is 122646779. The reversal of 122646772 is 277646221.

It can be written as a sum of positive squares in 2 ways, for example, as 37896336 + 84750436 = 6156^2 + 9206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122646779) 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, 901747 + ... + 901882.

It is an arithmetic number, because the mean of its divisors is an integer number (18938115).

Almost surely, 2^122646772 is an apocalyptic number.

It is an amenable number.

122646772 is a deficient number, since it is larger than the sum of its proper divisors (104610608).

122646772 is a wasteful number, since it uses less digits than its factorization.

122646772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803650 (or 1803648 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 122646772 is about 11074.6003088148. The cubic root of 122646772 is about 496.8424645811.

The spelling of 122646772 in words is "one hundred twenty-two million, six hundred forty-six thousand, seven hundred seventy-two".