120506644 has 6 divisors (see below), whose sum is σ = 210886634. Its totient is φ = 60253320.

The previous prime is 120506627. The next prime is 120506647. The reversal of 120506644 is 446605021.

It can be written as a sum of positive squares in only one way, i.e., 69555600 + 50951044 = 8340^2 + 7138^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120506647) by changing a digit.

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 as a sum of consecutive naturals, namely, 15063327 + ... + 15063334.

Almost surely, 2^120506644 is an apocalyptic number.

It is an amenable number.

120506644 is a deficient number, since it is larger than the sum of its proper divisors (90379990).

120506644 is a wasteful number, since it uses less digits than its factorization.

120506644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30126665 (or 30126663 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 120506644 is about 10977.5518217861. The cubic root of 120506644 is about 493.9356021984.

The spelling of 120506644 in words is "one hundred twenty million, five hundred six thousand, six hundred forty-four".