3981119541 has 16 divisors (see below), whose sum is σ = 6262161408. Its totient is φ = 2201540400.

The previous prime is 3981119531. The next prime is 3981119543. The reversal of 3981119541 is 1459111893.

It is a happy number.

It is not a de Polignac number, because 3981119541 - 2⁵ = 3981119509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3981119493 and 3981119502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981119543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3057045 + ... + 3058346.

It is an arithmetic number, because the mean of its divisors is an integer number (391385088).

Almost surely, 2^3981119541 is an apocalyptic number.

3981119541 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3981119541 is a deficient number, since it is larger than the sum of its proper divisors (2281041867).

3981119541 is a wasteful number, since it uses less digits than its factorization.

3981119541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115432.

The product of its digits is 38880, while the sum is 42.

The square root of 3981119541 is about 63096.1135173950. The cubic root of 3981119541 is about 1584.8995403162.

The spelling of 3981119541 in words is "three billion, nine hundred eighty-one million, one hundred nineteen thousand, five hundred forty-one".