505127945 has 16 divisors (see below), whose sum is σ = 716636160. Its totient is φ = 334428864.

The previous prime is 505127933. The next prime is 505127947. The reversal of 505127945 is 549721505.

It is a happy number.

It is not a de Polignac number, because 505127945 - 2⁴ = 505127929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505127899 and 505127908.

It is not an unprimeable number, because it can be changed into a prime (505127947) 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 in 15 ways as a sum of consecutive naturals, for example, 247817 + ... + 249846.

It is an arithmetic number, because the mean of its divisors is an integer number (44789760).

Almost surely, 2^505127945 is an apocalyptic number.

It is an amenable number.

505127945 is a deficient number, since it is larger than the sum of its proper divisors (211508215).

505127945 is a wasteful number, since it uses less digits than its factorization.

505127945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497704.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 505127945 is about 22475.0516128440. The cubic root of 505127945 is about 796.4046709039.

The spelling of 505127945 in words is "five hundred five million, one hundred twenty-seven thousand, nine hundred forty-five".