3138249041549 has 4 divisors (see below), whose sum is σ = 3322851926364. Its totient is φ = 2953646156736.

The previous prime is 3138249041527. The next prime is 3138249041561. The reversal of 3138249041549 is 9451409428313.

3138249041549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2400981240100 + 737267801449 = 1549510^2 + 858643^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138249041549 - 2³² = 3133954074253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3138249041549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138249041749) 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, 92301442382 + ... + 92301442415.

It is an arithmetic number, because the mean of its divisors is an integer number (830712981591).

Almost surely, 2^{3138249041549} is an apocalyptic number.

It is an amenable number.

3138249041549 is a deficient number, since it is larger than the sum of its proper divisors (184602884815).

3138249041549 is a wasteful number, since it uses less digits than its factorization.

3138249041549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184602884814.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 3138249041549 in words is "three trillion, one hundred thirty-eight billion, two hundred forty-nine million, forty-one thousand, five hundred forty-nine".