126553805 has 16 divisors (see below), whose sum is σ = 173746944. Its totient is φ = 86686080.

The previous prime is 126553799. The next prime is 126553807. The reversal of 126553805 is 508355621.

It is not a de Polignac number, because 126553805 - 2⁴ = 126553789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126553807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51689 + ... + 54081.

It is an arithmetic number, because the mean of its divisors is an integer number (10859184).

Almost surely, 2^126553805 is an apocalyptic number.

It is an amenable number.

126553805 is a deficient number, since it is larger than the sum of its proper divisors (47193139).

126553805 is a wasteful number, since it uses less digits than its factorization.

126553805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 126553805 is about 11249.6135489180. The cubic root of 126553805 is about 502.0632145808.

The spelling of 126553805 in words is "one hundred twenty-six million, five hundred fifty-three thousand, eight hundred five".