504421145 has 4 divisors (see below), whose sum is σ = 605305380. Its totient is φ = 403536912.

The previous prime is 504421081. The next prime is 504421147. The reversal of 504421145 is 541124405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261404224 + 243016921 = 16168^2 + 15589^2 .

It is a cyclic number.

It is not a de Polignac number, because 504421145 - 2⁶ = 504421081 is a prime.

It is a super-2 number, since 2×504421145² = 508881383046222050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (504421147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50442110 + ... + 50442119.

It is an arithmetic number, because the mean of its divisors is an integer number (151326345).

Almost surely, 2^504421145 is an apocalyptic number.

It is an amenable number.

504421145 is a deficient number, since it is larger than the sum of its proper divisors (100884235).

504421145 is a wasteful number, since it uses less digits than its factorization.

504421145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100884234.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 504421145 is about 22459.3220066858. The cubic root of 504421145 is about 796.0330412494.

The spelling of 504421145 in words is "five hundred four million, four hundred twenty-one thousand, one hundred forty-five".