4126456181 has 4 divisors (see below), whose sum is σ = 4182983052. Its totient is φ = 4069929312.

The previous prime is 4126456123. The next prime is 4126456183. The reversal of 4126456181 is 1816546214.

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 2666069956 + 1460386225 = 51634^2 + 38215^2 .

It is a cyclic number.

It is not a de Polignac number, because 4126456181 - 2²² = 4122261877 is a prime.

It is a super-2 number, since 2×4126456181² = 34055281227426209522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4126456183) 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, 28263326 + ... + 28263471.

It is an arithmetic number, because the mean of its divisors is an integer number (1045745763).

Almost surely, 2^4126456181 is an apocalyptic number.

It is an amenable number.

4126456181 is a deficient number, since it is larger than the sum of its proper divisors (56526871).

4126456181 is an equidigital number, since it uses as much as digits as its factorization.

4126456181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56526870.

The product of its digits is 46080, while the sum is 38.

The square root of 4126456181 is about 64237.4982467406. The cubic root of 4126456181 is about 1603.9558599896.

The spelling of 4126456181 in words is "four billion, one hundred twenty-six million, four hundred fifty-six thousand, one hundred eighty-one".