1641285227 has 16 divisors (see below), whose sum is σ = 1775172000. Its totient is φ = 1512380160.

The previous prime is 1641285197. The next prime is 1641285241. The reversal of 1641285227 is 7225821461.

It is a cyclic number.

It is not a de Polignac number, because 1641285227 - 2¹⁴ = 1641268843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641285127) 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, 268853 + ... + 274889.

It is an arithmetic number, because the mean of its divisors is an integer number (110948250).

Almost surely, 2^1641285227 is an apocalyptic number.

1641285227 is a deficient number, since it is larger than the sum of its proper divisors (133886773).

1641285227 is a wasteful number, since it uses less digits than its factorization.

1641285227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446.

The product of its digits is 53760, while the sum is 38.

The square root of 1641285227 is about 40512.7785642999. The cubic root of 1641285227 is about 1179.5816833316.

The spelling of 1641285227 in words is "one billion, six hundred forty-one million, two hundred eighty-five thousand, two hundred twenty-seven".