3056145891 has 16 divisors (see below), whose sum is σ = 4091547648. Its totient is φ = 2029104000.

The previous prime is 3056145847. The next prime is 3056145931. The reversal of 3056145891 is 1985416503.

3056145891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3056145891 - 2¹³ = 3056137699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3056145821) 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, 1089691 + ... + 1092491.

It is an arithmetic number, because the mean of its divisors is an integer number (255721728).

Almost surely, 2^3056145891 is an apocalyptic number.

3056145891 is a deficient number, since it is larger than the sum of its proper divisors (1035401757).

3056145891 is a wasteful number, since it uses less digits than its factorization.

3056145891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 3056145891 is about 55282.4193663772. The cubic root of 3056145891 is about 1451.1913935534.

The spelling of 3056145891 in words is "three billion, fifty-six million, one hundred forty-five thousand, eight hundred ninety-one".