227491013 has 4 divisors (see below), whose sum is σ = 228997728. Its totient is φ = 225984300.

The previous prime is 227490947. The next prime is 227491037. The reversal of 227491013 is 310194722.

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 227491013 - 2¹⁴ = 227474629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227491073) 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, 753131 + ... + 753432.

It is an arithmetic number, because the mean of its divisors is an integer number (57249432).

Almost surely, 2^227491013 is an apocalyptic number.

It is an amenable number.

227491013 is a deficient number, since it is larger than the sum of its proper divisors (1506715).

227491013 is a wasteful number, since it uses less digits than its factorization.

227491013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506714.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 227491013 is about 15082.8052099071. The cubic root of 227491013 is about 610.4565363131.

The spelling of 227491013 in words is "two hundred twenty-seven million, four hundred ninety-one thousand, thirteen".