227136864 has 48 divisors (see below), whose sum is σ = 631311408. Its totient is φ = 71258112.

The previous prime is 227136851. The next prime is 227136883. The reversal of 227136864 is 468631722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67957 + ... + 71220.

It is an arithmetic number, because the mean of its divisors is an integer number (13152321).

Almost surely, 2^227136864 is an apocalyptic number.

227136864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

227136864 is an abundant number, since it is smaller than the sum of its proper divisors (404174544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227136864 is a wasteful number, since it uses less digits than its factorization.

227136864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139207 (or 139199 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 227136864 is about 15071.0604802715. The cubic root of 227136864 is about 610.1395936014.

The spelling of 227136864 in words is "two hundred twenty-seven million, one hundred thirty-six thousand, eight hundred sixty-four".