126888899 has 2 divisors, whose sum is σ = 126888900. Its totient is φ = 126888898.

The previous prime is 126888889. The next prime is 126888917. The reversal of 126888899 is 998888621.

It is a weak prime.

It is an emirp because it is prime and its reverse (998888621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126888899 - 2¹⁶ = 126823363 is a prime.

It is a super-2 number, since 2×126888899² = 32201585378864402, which contains 22 as substring.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (126888869) 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, 63444449 + 63444450.

It is an arithmetic number, because the mean of its divisors is an integer number (63444450).

Almost surely, 2^126888899 is an apocalyptic number.

126888899 is a deficient number, since it is larger than the sum of its proper divisors (1).

126888899 is an equidigital number, since it uses as much as digits as its factorization.

126888899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 59.

The square root of 126888899 is about 11264.4972812816. The cubic root of 126888899 is about 502.5059514324.

The spelling of 126888899 in words is "one hundred twenty-six million, eight hundred eighty-eight thousand, eight hundred ninety-nine".