4124045381 has 4 divisors (see below), whose sum is σ = 4201857612. Its totient is φ = 4046233152.

The previous prime is 4124045363. The next prime is 4124045407. The reversal of 4124045381 is 1835404214.

4124045381 = 45409² + 45410².

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 2061977281 + 2062068100 = 45409^2 + 45410^2 .

It is a cyclic number.

It is not a de Polignac number, because 4124045381 - 2¹⁰ = 4124044357 is a prime.

It is a super-2 number, since 2×4124045381² = 34015500609094870322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4124045281) 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 3 ways as a sum of consecutive naturals, for example, 38906036 + ... + 38906141.

It is an arithmetic number, because the mean of its divisors is an integer number (1050464403).

Almost surely, 2^4124045381 is an apocalyptic number.

4124045381 is the 45410-th centered square number.

It is an amenable number.

4124045381 is a deficient number, since it is larger than the sum of its proper divisors (77812231).

4124045381 is an equidigital number, since it uses as much as digits as its factorization.

4124045381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77812230.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 4124045381 is about 64218.7307644740. The cubic root of 4124045381 is about 1603.6434393636.

Adding to 4124045381 its reverse (1835404214), we get a palindrome (5959449595).

The spelling of 4124045381 in words is "four billion, one hundred twenty-four million, forty-five thousand, three hundred eighty-one".