1641064 has 8 divisors (see below), whose sum is σ = 3077010. Its totient is φ = 820528.

The previous prime is 1641053. The next prime is 1641077. The reversal of 1641064 is 4601461.

It can be written as a sum of positive squares in only one way, i.e., 1512900 + 128164 = 1230^2 + 358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102559 + ... + 102574.

2^1641064 is an apocalyptic number.

It is an amenable number.

1641064 is a deficient number, since it is larger than the sum of its proper divisors (1435946).

1641064 is a wasteful number, since it uses less digits than its factorization.

1641064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205139 (or 205135 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1641064 is about 1281.0402023356. The cubic root of 1641064 is about 117.9528682785.

The spelling of 1641064 in words is "one million, six hundred forty-one thousand, sixty-four".