4056943081 has 4 divisors (see below), whose sum is σ = 4196837700. Its totient is φ = 3917048464.

The previous prime is 4056943069. The next prime is 4056943103. The reversal of 4056943081 is 1803496504.

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 1569427456 + 2487515625 = 39616^2 + 49875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056943081 - 2²¹ = 4054845929 is a prime.

It is a super-2 number, since 2×4056943081² = 32917574324947545122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4056943001) 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, 69947266 + ... + 69947323.

It is an arithmetic number, because the mean of its divisors is an integer number (1049209425).

Almost surely, 2^4056943081 is an apocalyptic number.

It is an amenable number.

4056943081 is a deficient number, since it is larger than the sum of its proper divisors (139894619).

4056943081 is a wasteful number, since it uses less digits than its factorization.

4056943081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139894618.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 4056943081 is about 63694.1369436779. The cubic root of 4056943081 is about 1594.8982133202.

The spelling of 4056943081 in words is "four billion, fifty-six million, nine hundred forty-three thousand, eighty-one".