1564116 has 12 divisors (see below), whose sum is σ = 3649632. Its totient is φ = 521368.

The previous prime is 1564111. The next prime is 1564117. The reversal of 1564116 is 6114651.

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

It is a super-2 number, since 2×1564116² = 4892917722912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65160 + ... + 65183.

It is an arithmetic number, because the mean of its divisors is an integer number (304136).

2^1564116 is an apocalyptic number.

It is an amenable number.

1564116 is an abundant number, since it is smaller than the sum of its proper divisors (2085516).

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

1564116 is a wasteful number, since it uses less digits than its factorization.

1564116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130350 (or 130348 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1564116 is about 1250.6462329532. The cubic root of 1564116 is about 116.0797113638.

Adding to 1564116 its reverse (6114651), we get a palindrome (7678767).

The spelling of 1564116 in words is "one million, five hundred sixty-four thousand, one hundred sixteen".