1061564 has 24 divisors (see below), whose sum is σ = 2193408. Its totient is φ = 439920.

The previous prime is 1061561. The next prime is 1061569. The reversal of 1061564 is 4651601.

It is a super-2 number, since 2×1061564² = 2253836252192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (91392).

2^1061564 is an apocalyptic number.

1061564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096704).

1061564 is an abundant number, since it is smaller than the sum of its proper divisors (1131844).

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

1061564 is a wasteful number, since it uses less digits than its factorization.

1061564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1061564 is about 1030.3222796776. The cubic root of 1061564 is about 102.0114045943.

The spelling of 1061564 in words is "one million, sixty-one thousand, five hundred sixty-four".