504447149 has 4 divisors (see below), whose sum is σ = 516750780. Its totient is φ = 492143520.

The previous prime is 504447143. The next prime is 504447161. The reversal of 504447149 is 941744405.

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 32775625 + 471671524 = 5725^2 + 21718^2 .

It is a cyclic number.

It is not a de Polignac number, because 504447149 - 2⁴ = 504447133 is a prime.

It is a super-2 number, since 2×504447149² = 508933852268456402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504447143) 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, 6151754 + ... + 6151835.

It is an arithmetic number, because the mean of its divisors is an integer number (129187695).

Almost surely, 2^504447149 is an apocalyptic number.

It is an amenable number.

504447149 is a deficient number, since it is larger than the sum of its proper divisors (12303631).

504447149 is a wasteful number, since it uses less digits than its factorization.

504447149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12303630.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 504447149 is about 22459.9009125152. The cubic root of 504447149 is about 796.0467200889.

The spelling of 504447149 in words is "five hundred four million, four hundred forty-seven thousand, one hundred forty-nine".