122491600144 has 45 divisors (see below), whose sum is σ = 241581052983. Its totient is φ = 60167137056.

The previous prime is 122491600117. The next prime is 122491600157. The reversal of 122491600144 is 441006194221.

It is a happy number.

The square root of 122491600144 is 349988.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82596427 + ... + 82597909.

Almost surely, 2^122491600144 is an apocalyptic number.

122491600144 is the 349988-th square number.

It is an amenable number.

122491600144 is a deficient number, since it is larger than the sum of its proper divisors (119089452839).

122491600144 is an frugal number, since it uses more digits than its factorization.

122491600144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

Adding to 122491600144 its reverse (441006194221), we get a palindrome (563497794365).

The spelling of 122491600144 in words is "one hundred twenty-two billion, four hundred ninety-one million, six hundred thousand, one hundred forty-four".