227897513 has 4 divisors (see below), whose sum is σ = 228977808. Its totient is φ = 226817220.

The previous prime is 227897507. The next prime is 227897519. The reversal of 227897513 is 315798722.

227897513 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, and also an emirpimes, since its reverse is a distinct semiprime: 315798722 = 2 ⋅157899361.

It is an interprime number because it is at equal distance from previous prime (227897507) and next prime (227897519).

It is a cyclic number.

It is not a de Polignac number, because 227897513 - 2⁴ = 227897497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227897519) 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, 539831 + ... + 540252.

It is an arithmetic number, because the mean of its divisors is an integer number (57244452).

Almost surely, 2^227897513 is an apocalyptic number.

It is an amenable number.

227897513 is a deficient number, since it is larger than the sum of its proper divisors (1080295).

227897513 is a wasteful number, since it uses less digits than its factorization.

227897513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080294.

The product of its digits is 211680, while the sum is 44.

The square root of 227897513 is about 15096.2748053949. The cubic root of 227897513 is about 610.8199249146.

The spelling of 227897513 in words is "two hundred twenty-seven million, eight hundred ninety-seven thousand, five hundred thirteen".