4124145881 has 2 divisors, whose sum is σ = 4124145882. Its totient is φ = 4124145880.

The previous prime is 4124145863. The next prime is 4124145887. The reversal of 4124145881 is 1885414214.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2265760000 + 1858385881 = 47600^2 + 43109^2 .

It is a cyclic number.

It is not a de Polignac number, because 4124145881 - 2¹⁴ = 4124129497 is a prime.

It is a super-2 number, since 2×4124145881² = 34017158495538532322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4124145887) 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 as a sum of consecutive naturals, namely, 2062072940 + 2062072941.

It is an arithmetic number, because the mean of its divisors is an integer number (2062072941).

Almost surely, 2^4124145881 is an apocalyptic number.

It is an amenable number.

4124145881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4124145881 is an equidigital number, since it uses as much as digits as its factorization.

4124145881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40960, while the sum is 38.

The square root of 4124145881 is about 64219.5132416931. The cubic root of 4124145881 is about 1603.6564658010.

The spelling of 4124145881 in words is "four billion, one hundred twenty-four million, one hundred forty-five thousand, eight hundred eighty-one".