126086881 has 2 divisors, whose sum is σ = 126086882. Its totient is φ = 126086880.

The previous prime is 126086843. The next prime is 126086899. The reversal of 126086881 is 188680621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84934656 + 41152225 = 9216^2 + 6415^2 .

It is a cyclic number.

It is not a de Polignac number, because 126086881 - 2⁹ = 126086369 is a prime.

It is a super-2 number, since 2×126086881² = 31795803120616322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126086801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63043440 + 63043441.

It is an arithmetic number, because the mean of its divisors is an integer number (63043441).

Almost surely, 2^126086881 is an apocalyptic number.

It is an amenable number.

126086881 is a deficient number, since it is larger than the sum of its proper divisors (1).

126086881 is an equidigital number, since it uses as much as digits as its factorization.

126086881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 126086881 is about 11228.8414807584. The cubic root of 126086881 is about 501.4449946249. Note that the first 3 decimals are identical.

The spelling of 126086881 in words is "one hundred twenty-six million, eighty-six thousand, eight hundred eighty-one".