227185513 has 16 divisors (see below), whose sum is σ = 244707840. Its totient is φ = 210361536.

The previous prime is 227185499. The next prime is 227185529. The reversal of 227185513 is 315581722.

227185513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 227185513 - 2⁵ = 227185481 is a prime.

It is a super-2 number, since 2×227185513² = 103226514634146338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227185213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202831 + ... + 203947.

It is an arithmetic number, because the mean of its divisors is an integer number (15294240).

Almost surely, 2^227185513 is an apocalyptic number.

227185513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

227185513 is a deficient number, since it is larger than the sum of its proper divisors (17522327).

227185513 is a wasteful number, since it uses less digits than its factorization.

227185513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its digits is 16800, while the sum is 34.

The square root of 227185513 is about 15072.6743811442. The cubic root of 227185513 is about 610.1831511312.

The spelling of 227185513 in words is "two hundred twenty-seven million, one hundred eighty-five thousand, five hundred thirteen".