1230564 has 12 divisors (see below), whose sum is σ = 2871344. Its totient is φ = 410184.

The previous prime is 1230547. The next prime is 1230571. The reversal of 1230564 is 4650321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1230564.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51262 + ... + 51285.

2^1230564 is an apocalyptic number.

It is an amenable number.

1230564 is an abundant number, since it is smaller than the sum of its proper divisors (1640780).

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

1230564 is a wasteful number, since it uses less digits than its factorization.

1230564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102554 (or 102552 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1230564 is about 1109.3078923365. The cubic root of 1230564 is about 107.1605009673.

Adding to 1230564 its reverse (4650321), we get a palindrome (5880885).

The spelling of 1230564 in words is "one million, two hundred thirty thousand, five hundred sixty-four".