1244120104 has 8 divisors (see below), whose sum is σ = 2332725210. Its totient is φ = 622060048.

The previous prime is 1244120081. The next prime is 1244120123. The reversal of 1244120104 is 4010214421.

It can be written as a sum of positive squares in only one way, i.e., 1072562500 + 171557604 = 32750^2 + 13098^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77757499 + ... + 77757514.

Almost surely, 2^1244120104 is an apocalyptic number.

It is an amenable number.

1244120104 is a deficient number, since it is larger than the sum of its proper divisors (1088605106).

1244120104 is a wasteful number, since it uses less digits than its factorization.

1244120104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155515019 (or 155515015 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1244120104 is about 35272.0867542594. The cubic root of 1244120104 is about 1075.5256427723.

Adding to 1244120104 its reverse (4010214421), we get a palindrome (5254334525).

The spelling of 1244120104 in words is "one billion, two hundred forty-four million, one hundred twenty thousand, one hundred four".