227132505 has 80 divisors (see below), whose sum is σ = 427468800. Its totient is φ = 115240320.

The previous prime is 227132501. The next prime is 227132527. The reversal of 227132505 is 505231722.

227132505 is a `hidden beast` number, since 2 + 27 + 132 + 505 = 666.

It is not a de Polignac number, because 227132505 - 2² = 227132501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227132501) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 991731 + ... + 991959.

It is an arithmetic number, because the mean of its divisors is an integer number (5343360).

Almost surely, 2^227132505 is an apocalyptic number.

It is an amenable number.

227132505 is a deficient number, since it is larger than the sum of its proper divisors (200336295).

227132505 is a wasteful number, since it uses less digits than its factorization.

227132505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 227132505 is about 15070.9158646713. The cubic root of 227132505 is about 610.1356904987.

The spelling of 227132505 in words is "two hundred twenty-seven million, one hundred thirty-two thousand, five hundred five".