3981137043 has 8 divisors (see below), whose sum is σ = 5716504528. Its totient is φ = 2449930464.

The previous prime is 3981136997. The next prime is 3981137057. The reversal of 3981137043 is 3407311893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3981137043 - 2¹⁴ = 3981120659 is a prime.

It is a super-3 number, since 3×3981137043³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 102080437 = 3981137043 / (3 + 9 + 8 + 1 + 1 + 3 + 7 + 0 + 4 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3981136992 and 3981137010.

It is not an unprimeable number, because it can be changed into a prime (3981137143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51040180 + ... + 51040257.

It is an arithmetic number, because the mean of its divisors is an integer number (714563066).

Almost surely, 2^3981137043 is an apocalyptic number.

3981137043 is a deficient number, since it is larger than the sum of its proper divisors (1735367485).

3981137043 is a wasteful number, since it uses less digits than its factorization.

3981137043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102080453.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3981137043 is about 63096.2522104126. The cubic root of 3981137043 is about 1584.9018628515.

The spelling of 3981137043 in words is "three billion, nine hundred eighty-one million, one hundred thirty-seven thousand, forty-three".