505415145 has 8 divisors (see below), whose sum is σ = 808664256. Its totient is φ = 269554736.

The previous prime is 505415093. The next prime is 505415147. The reversal of 505415145 is 541514505.

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 505415145 - 2⁶ = 505415081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505415147) 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, 16847157 + ... + 16847186.

It is an arithmetic number, because the mean of its divisors is an integer number (101083032).

Almost surely, 2^505415145 is an apocalyptic number.

It is an amenable number.

505415145 is a deficient number, since it is larger than the sum of its proper divisors (303249111).

505415145 is a wasteful number, since it uses less digits than its factorization.

505415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33694351.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 505415145 is about 22481.4400117074. The cubic root of 505415145 is about 796.5555792618. Note that the first 4 decimals are identical.

The spelling of 505415145 in words is "five hundred five million, four hundred fifteen thousand, one hundred forty-five".