1244106155144 has 16 divisors (see below), whose sum is σ = 2332755409500. Its totient is φ = 622038045952.

The previous prime is 1244106155143. The next prime is 1244106155161. The reversal of 1244106155144 is 4415516014421.

It can be written as a sum of positive squares in 2 ways, for example, as 1244094852100 + 11303044 = 1115390^2 + 3362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1244106155098 and 1244106155107.

It is not an unprimeable number, because it can be changed into a prime (1244106155143) 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, 1523237 + ... + 2192820.

Almost surely, 2^{1244106155144} is an apocalyptic number.

It is an amenable number.

1244106155144 is a deficient number, since it is larger than the sum of its proper divisors (1088649254356).

1244106155144 is a wasteful number, since it uses less digits than its factorization.

1244106155144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757912 (or 3757908 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 1244106155144 in words is "one trillion, two hundred forty-four billion, one hundred six million, one hundred fifty-five thousand, one hundred forty-four".