126527881 has 2 divisors, whose sum is σ = 126527882. Its totient is φ = 126527880.

The previous prime is 126527861. The next prime is 126527903. The reversal of 126527881 is 188725621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121352256 + 5175625 = 11016^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 126527881 - 2¹⁹ = 126003593 is a prime.

It is a super-2 number, since 2×126527881² = 32018609340700322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126527861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63263940 + 63263941.

It is an arithmetic number, because the mean of its divisors is an integer number (63263941).

Almost surely, 2^126527881 is an apocalyptic number.

It is an amenable number.

126527881 is a deficient number, since it is larger than the sum of its proper divisors (1).

126527881 is an equidigital number, since it uses as much as digits as its factorization.

126527881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 40.

The square root of 126527881 is about 11248.4612725475. The cubic root of 126527881 is about 502.0289304131.

The spelling of 126527881 in words is "one hundred twenty-six million, five hundred twenty-seven thousand, eight hundred eighty-one".