126522889 has 2 divisors, whose sum is σ = 126522890. Its totient is φ = 126522888.

The previous prime is 126522871. The next prime is 126522937. The reversal of 126522889 is 988225621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68641225 + 57881664 = 8285^2 + 7608^2 .

It is a cyclic number.

It is not a de Polignac number, because 126522889 - 2¹¹ = 126520841 is a prime.

It is not a weakly prime, because it can be changed into another prime (126522859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63261444 + 63261445.

It is an arithmetic number, because the mean of its divisors is an integer number (63261445).

Almost surely, 2^126522889 is an apocalyptic number.

It is an amenable number.

126522889 is a deficient number, since it is larger than the sum of its proper divisors (1).

126522889 is an equidigital number, since it uses as much as digits as its factorization.

126522889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 126522889 is about 11248.2393733419. The cubic root of 126522889 is about 502.0223280175.

The spelling of 126522889 in words is "one hundred twenty-six million, five hundred twenty-two thousand, eight hundred eighty-nine".