244121320145 has 32 divisors (see below), whose sum is σ = 306672943104. Its totient is φ = 186341299200.

The previous prime is 244121320139. The next prime is 244121320171. The reversal of 244121320145 is 541023121442.

It is a happy number.

It is not a de Polignac number, because 244121320145 - 2⁶ = 244121320081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3308879 + ... + 3381851.

It is an arithmetic number, because the mean of its divisors is an integer number (9583529472).

Almost surely, 2^244121320145 is an apocalyptic number.

It is an amenable number.

244121320145 is a deficient number, since it is larger than the sum of its proper divisors (62551622959).

244121320145 is a wasteful number, since it uses less digits than its factorization.

244121320145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73313.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 244121320145 its reverse (541023121442), we get a palindrome (785144441587).

The spelling of 244121320145 in words is "two hundred forty-four billion, one hundred twenty-one million, three hundred twenty thousand, one hundred forty-five".