227456521 has 4 divisors (see below), whose sum is σ = 227601792. Its totient is φ = 227311252.

The previous prime is 227456461. The next prime is 227456527. The reversal of 227456521 is 125654722.

227456521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 227456521 - 2¹¹ = 227454473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227456527) 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, 70261 + ... + 73426.

It is an arithmetic number, because the mean of its divisors is an integer number (56900448).

Almost surely, 2^227456521 is an apocalyptic number.

It is an amenable number.

227456521 is a deficient number, since it is larger than the sum of its proper divisors (145271).

227456521 is a wasteful number, since it uses less digits than its factorization.

227456521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145270.

The product of its digits is 33600, while the sum is 34.

The square root of 227456521 is about 15081.6617453118. The cubic root of 227456521 is about 610.4256824480.

The spelling of 227456521 in words is "two hundred twenty-seven million, four hundred fifty-six thousand, five hundred twenty-one".