4054149081 has 12 divisors (see below), whose sum is σ = 5856592560. Its totient is φ = 2702489400.

The previous prime is 4054149067. The next prime is 4054149109. The reversal of 4054149081 is 1809414504.

4054149081 is a `hidden beast` number, since 40 + 54 + 1 + 490 + 81 = 666.

It is not a de Polignac number, because 4054149081 - 2⁶ = 4054149017 is a prime.

It is a super-2 number, since 2×4054149081² = 32872249541946289122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4054149181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110430 + ... + 142488.

It is an arithmetic number, because the mean of its divisors is an integer number (488049380).

Almost surely, 2^4054149081 is an apocalyptic number.

It is an amenable number.

4054149081 is a deficient number, since it is larger than the sum of its proper divisors (1802443479).

4054149081 is a wasteful number, since it uses less digits than its factorization.

4054149081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46116 (or 46113 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 4054149081 is about 63672.2002211326. The cubic root of 4054149081 is about 1594.5319959584.

The spelling of 4054149081 in words is "four billion, fifty-four million, one hundred forty-nine thousand, eighty-one".