504021145 has 8 divisors (see below), whose sum is σ = 605147400. Its totient is φ = 403002240.

The previous prime is 504021143. The next prime is 504021163. The reversal of 504021145 is 541120405.

It can be written as a sum of positive squares in 4 ways, for example, as 24235929 + 479785216 = 4923^2 + 21904^2 .

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

It is not a de Polignac number, because 504021145 - 2¹ = 504021143 is a prime.

It is a super-2 number, since 2×504021145² = 508074629214222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (504021143) 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, 16116 + ... + 35605.

It is an arithmetic number, because the mean of its divisors is an integer number (75643425).

Almost surely, 2^504021145 is an apocalyptic number.

It is an amenable number.

504021145 is a deficient number, since it is larger than the sum of its proper divisors (101126255).

504021145 is a wasteful number, since it uses less digits than its factorization.

504021145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53675.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 504021145 is about 22450.4152522843. The cubic root of 504021145 is about 795.8225706782.

The spelling of 504021145 in words is "five hundred four million, twenty-one thousand, one hundred forty-five".