505123045 has 8 divisors (see below), whose sum is σ = 692740224. Its totient is φ = 346370064.

The previous prime is 505123043. The next prime is 505123051. The reversal of 505123045 is 540321505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505123045 - 2¹ = 505123043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505123043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7216009 + ... + 7216078.

It is an arithmetic number, because the mean of its divisors is an integer number (86592528).

Almost surely, 2^505123045 is an apocalyptic number.

It is an amenable number.

505123045 is a deficient number, since it is larger than the sum of its proper divisors (187617179).

505123045 is a wasteful number, since it uses less digits than its factorization.

505123045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14432099.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 505123045 is about 22474.9426028188. The cubic root of 505123045 is about 796.4020957177.

The spelling of 505123045 in words is "five hundred five million, one hundred twenty-three thousand, forty-five".