126553799 has 2 divisors, whose sum is σ = 126553800. Its totient is φ = 126553798.

The previous prime is 126553789. The next prime is 126553807. The reversal of 126553799 is 997355621.

It is a strong prime.

It is an emirp because it is prime and its reverse (997355621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126553799 - 2⁴ = 126553783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126553789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63276899 + 63276900.

It is an arithmetic number, because the mean of its divisors is an integer number (63276900).

Almost surely, 2^126553799 is an apocalyptic number.

126553799 is a deficient number, since it is larger than the sum of its proper divisors (1).

126553799 is an equidigital number, since it uses as much as digits as its factorization.

126553799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 47.

The square root of 126553799 is about 11249.6132822422. The cubic root of 126553799 is about 502.0632066464.

The spelling of 126553799 in words is "one hundred twenty-six million, five hundred fifty-three thousand, seven hundred ninety-nine".